diff --git a/src/main/java/org/kkumulkkum/server/controller/AuthController.java b/src/main/java/org/kkumulkkum/server/api/auth/controller/AuthController.java
similarity index 78%
rename from src/main/java/org/kkumulkkum/server/controller/AuthController.java
rename to src/main/java/org/kkumulkkum/server/api/auth/controller/AuthController.java
index 30ba825..099718c 100644
--- a/src/main/java/org/kkumulkkum/server/controller/AuthController.java
+++ b/src/main/java/org/kkumulkkum/server/api/auth/controller/AuthController.java
@@ -1,15 +1,15 @@
-package org.kkumulkkum.server.controller;
+package org.kkumulkkum.server.api.auth.controller;
 
 import com.google.firebase.database.annotations.Nullable;
 import jakarta.validation.Valid;
 import jakarta.validation.constraints.NotBlank;
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.annotation.UserId;
-import org.kkumulkkum.server.constant.AuthConstant;
-import org.kkumulkkum.server.dto.auth.request.UserLoginDto;
-import org.kkumulkkum.server.dto.auth.response.JwtTokenDto;
-import org.kkumulkkum.server.dto.auth.response.UserTokenDto;
-import org.kkumulkkum.server.service.auth.AuthService;
+import org.kkumulkkum.server.common.auth.annotation.UserId;
+import org.kkumulkkum.server.common.auth.constant.AuthConstant;
+import org.kkumulkkum.server.api.auth.dto.request.UserLoginDto;
+import org.kkumulkkum.server.api.auth.dto.response.JwtTokenDto;
+import org.kkumulkkum.server.api.auth.dto.response.UserTokenDto;
+import org.kkumulkkum.server.api.auth.service.AuthService;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
diff --git a/src/main/java/org/kkumulkkum/server/auth/openfeign/kakao/dto/SocialUserDto.java b/src/main/java/org/kkumulkkum/server/api/auth/dto/SocialUserDto.java
similarity index 77%
rename from src/main/java/org/kkumulkkum/server/auth/openfeign/kakao/dto/SocialUserDto.java
rename to src/main/java/org/kkumulkkum/server/api/auth/dto/SocialUserDto.java
index d97f9f4..cfcd61e 100644
--- a/src/main/java/org/kkumulkkum/server/auth/openfeign/kakao/dto/SocialUserDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/auth/dto/SocialUserDto.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.auth.openfeign.kakao.dto;
+package org.kkumulkkum.server.api.auth.dto;
 
 public record SocialUserDto(String platformId, String email) {
 
diff --git a/src/main/java/org/kkumulkkum/server/dto/auth/request/UserLoginDto.java b/src/main/java/org/kkumulkkum/server/api/auth/dto/request/UserLoginDto.java
similarity index 66%
rename from src/main/java/org/kkumulkkum/server/dto/auth/request/UserLoginDto.java
rename to src/main/java/org/kkumulkkum/server/api/auth/dto/request/UserLoginDto.java
index 739115d..269a51c 100644
--- a/src/main/java/org/kkumulkkum/server/dto/auth/request/UserLoginDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/auth/dto/request/UserLoginDto.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.dto.auth.request;
+package org.kkumulkkum.server.api.auth.dto.request;
 
 import jakarta.annotation.Nullable;
 import jakarta.validation.constraints.NotNull;
-import org.kkumulkkum.server.domain.enums.Provider;
+import org.kkumulkkum.server.domain.user.Provider;
 
 public record UserLoginDto(
         @NotNull
diff --git a/src/main/java/org/kkumulkkum/server/dto/auth/response/JwtTokenDto.java b/src/main/java/org/kkumulkkum/server/api/auth/dto/response/JwtTokenDto.java
similarity index 88%
rename from src/main/java/org/kkumulkkum/server/dto/auth/response/JwtTokenDto.java
rename to src/main/java/org/kkumulkkum/server/api/auth/dto/response/JwtTokenDto.java
index d36465d..269901e 100644
--- a/src/main/java/org/kkumulkkum/server/dto/auth/response/JwtTokenDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/auth/dto/response/JwtTokenDto.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.dto.auth.response;
+package org.kkumulkkum.server.api.auth.dto.response;
 
 import lombok.AccessLevel;
 import lombok.Builder;
diff --git a/src/main/java/org/kkumulkkum/server/dto/auth/response/UserTokenDto.java b/src/main/java/org/kkumulkkum/server/api/auth/dto/response/UserTokenDto.java
similarity index 71%
rename from src/main/java/org/kkumulkkum/server/dto/auth/response/UserTokenDto.java
rename to src/main/java/org/kkumulkkum/server/api/auth/dto/response/UserTokenDto.java
index 4777218..8e189a1 100644
--- a/src/main/java/org/kkumulkkum/server/dto/auth/response/UserTokenDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/auth/dto/response/UserTokenDto.java
@@ -1,6 +1,6 @@
-package org.kkumulkkum.server.dto.auth.response;
+package org.kkumulkkum.server.api.auth.dto.response;
 
-import org.kkumulkkum.server.domain.UserInfo;
+import org.kkumulkkum.server.domain.userinfo.UserInfo;
 
 public record UserTokenDto(
         String name,
diff --git a/src/main/java/org/kkumulkkum/server/auth/openfeign/apple/dto/ApplePublicKey.java b/src/main/java/org/kkumulkkum/server/api/auth/dto/verify/ApplePublicKey.java
similarity index 69%
rename from src/main/java/org/kkumulkkum/server/auth/openfeign/apple/dto/ApplePublicKey.java
rename to src/main/java/org/kkumulkkum/server/api/auth/dto/verify/ApplePublicKey.java
index 3ef4abc..a06b05e 100644
--- a/src/main/java/org/kkumulkkum/server/auth/openfeign/apple/dto/ApplePublicKey.java
+++ b/src/main/java/org/kkumulkkum/server/api/auth/dto/verify/ApplePublicKey.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.auth.openfeign.apple.dto;
+package org.kkumulkkum.server.api.auth.dto.verify;
 
 public record ApplePublicKey(
         String kty, String kid, String use, String alg, String n, String e, String email
diff --git a/src/main/java/org/kkumulkkum/server/auth/openfeign/apple/dto/ApplePublicKeys.java b/src/main/java/org/kkumulkkum/server/api/auth/dto/verify/ApplePublicKeys.java
similarity index 69%
rename from src/main/java/org/kkumulkkum/server/auth/openfeign/apple/dto/ApplePublicKeys.java
rename to src/main/java/org/kkumulkkum/server/api/auth/dto/verify/ApplePublicKeys.java
index 3312e5c..9f021c9 100644
--- a/src/main/java/org/kkumulkkum/server/auth/openfeign/apple/dto/ApplePublicKeys.java
+++ b/src/main/java/org/kkumulkkum/server/api/auth/dto/verify/ApplePublicKeys.java
@@ -1,7 +1,7 @@
-package org.kkumulkkum.server.auth.openfeign.apple.dto;
+package org.kkumulkkum.server.api.auth.dto.verify;
 
-import org.kkumulkkum.server.exception.AuthException;
-import org.kkumulkkum.server.exception.code.AuthErrorCode;
+import org.kkumulkkum.server.common.exception.AuthException;
+import org.kkumulkkum.server.common.exception.code.AuthErrorCode;
 
 import java.util.List;
 
diff --git a/src/main/java/org/kkumulkkum/server/auth/openfeign/apple/service/AppleService.java b/src/main/java/org/kkumulkkum/server/api/auth/service/AppleService.java
similarity index 74%
rename from src/main/java/org/kkumulkkum/server/auth/openfeign/apple/service/AppleService.java
rename to src/main/java/org/kkumulkkum/server/api/auth/service/AppleService.java
index 343475e..4144047 100644
--- a/src/main/java/org/kkumulkkum/server/auth/openfeign/apple/service/AppleService.java
+++ b/src/main/java/org/kkumulkkum/server/api/auth/service/AppleService.java
@@ -1,22 +1,21 @@
-package org.kkumulkkum.server.auth.openfeign.apple.service;
+package org.kkumulkkum.server.api.auth.service;
 
 import io.jsonwebtoken.Claims;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.kkumulkkum.server.auth.openfeign.apple.AppleFeignClient;
-import org.kkumulkkum.server.auth.openfeign.apple.dto.ApplePublicKeys;
-import org.kkumulkkum.server.auth.openfeign.apple.dto.AppleTokenDto;
-import org.kkumulkkum.server.auth.openfeign.apple.verify.AppleClientSecretGenerator;
-import org.kkumulkkum.server.auth.openfeign.apple.verify.AppleJwtParser;
-import org.kkumulkkum.server.auth.openfeign.apple.verify.PublicKeyGenerator;
-import org.kkumulkkum.server.auth.openfeign.kakao.dto.SocialUserDto;
-import org.kkumulkkum.server.exception.AuthException;
-import org.kkumulkkum.server.exception.BusinessException;
-import org.kkumulkkum.server.exception.code.AuthErrorCode;
-import org.kkumulkkum.server.exception.code.BusinessErrorCode;
+import org.kkumulkkum.server.external.service.apple.AppleFeignClient;
+import org.kkumulkkum.server.api.auth.dto.verify.ApplePublicKeys;
+import org.kkumulkkum.server.external.service.apple.dto.AppleTokenDto;
+import org.kkumulkkum.server.api.auth.service.verify.AppleClientSecretGenerator;
+import org.kkumulkkum.server.api.auth.service.verify.AppleJwtParser;
+import org.kkumulkkum.server.api.auth.service.verify.PublicKeyGenerator;
+import org.kkumulkkum.server.api.auth.dto.SocialUserDto;
+import org.kkumulkkum.server.common.exception.AuthException;
+import org.kkumulkkum.server.common.exception.BusinessException;
+import org.kkumulkkum.server.common.exception.code.AuthErrorCode;
+import org.kkumulkkum.server.common.exception.code.BusinessErrorCode;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
-import org.springframework.web.bind.MissingRequestHeaderException;
 
 import java.security.PublicKey;
 import java.util.Map;
diff --git a/src/main/java/org/kkumulkkum/server/service/auth/AuthService.java b/src/main/java/org/kkumulkkum/server/api/auth/service/AuthService.java
similarity index 75%
rename from src/main/java/org/kkumulkkum/server/service/auth/AuthService.java
rename to src/main/java/org/kkumulkkum/server/api/auth/service/AuthService.java
index 685b62d..cb8531d 100644
--- a/src/main/java/org/kkumulkkum/server/service/auth/AuthService.java
+++ b/src/main/java/org/kkumulkkum/server/api/auth/service/AuthService.java
@@ -1,33 +1,34 @@
-package org.kkumulkkum.server.service.auth;
+package org.kkumulkkum.server.api.auth.service;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.auth.jwt.JwtTokenProvider;
-import org.kkumulkkum.server.auth.openfeign.kakao.dto.SocialUserDto;
-import org.kkumulkkum.server.auth.openfeign.apple.service.AppleService;
-import org.kkumulkkum.server.auth.openfeign.kakao.service.KakaoService;
-import org.kkumulkkum.server.domain.Member;
-import org.kkumulkkum.server.domain.Token;
-import org.kkumulkkum.server.domain.User;
-import org.kkumulkkum.server.domain.UserInfo;
-import org.kkumulkkum.server.domain.enums.Provider;
-import org.kkumulkkum.server.domain.enums.Role;
-import org.kkumulkkum.server.dto.auth.request.UserLoginDto;
-import org.kkumulkkum.server.dto.auth.response.JwtTokenDto;
-import org.kkumulkkum.server.dto.auth.response.UserTokenDto;
-import org.kkumulkkum.server.exception.AuthException;
-import org.kkumulkkum.server.exception.code.AuthErrorCode;
-import org.kkumulkkum.server.service.member.MemberRemover;
-import org.kkumulkkum.server.service.member.MemberRetreiver;
-import org.kkumulkkum.server.service.participant.ParticipantRemover;
-import org.kkumulkkum.server.service.participant.ParticipantRetriever;
-import org.kkumulkkum.server.service.promise.PromiseRemover;
-import org.kkumulkkum.server.service.promise.PromiseRetriever;
-import org.kkumulkkum.server.service.user.UserRemover;
-import org.kkumulkkum.server.service.user.UserRetriever;
-import org.kkumulkkum.server.service.user.UserSaver;
-import org.kkumulkkum.server.service.userInfo.UserInfoRemover;
-import org.kkumulkkum.server.service.userInfo.UserInfoRetriever;
-import org.kkumulkkum.server.service.userInfo.UserInfoSaver;
+import org.kkumulkkum.server.domain.user.manager.TokenRemover;
+import org.kkumulkkum.server.domain.user.manager.TokenRetriever;
+import org.kkumulkkum.server.domain.user.manager.TokenSaver;
+import org.kkumulkkum.server.domain.member.manager.MemberRetreiver;
+import org.kkumulkkum.server.domain.participant.manager.ParticipantRemover;
+import org.kkumulkkum.server.domain.participant.manager.ParticipantRetriever;
+import org.kkumulkkum.server.domain.promise.manager.PromiseRemover;
+import org.kkumulkkum.server.domain.promise.manager.PromiseRetriever;
+import org.kkumulkkum.server.domain.user.manager.UserRemover;
+import org.kkumulkkum.server.domain.user.manager.UserRetriever;
+import org.kkumulkkum.server.domain.userinfo.manager.UserInfoRemover;
+import org.kkumulkkum.server.domain.userinfo.manager.UserInfoRetriever;
+import org.kkumulkkum.server.domain.userinfo.manager.UserInfoSaver;
+import org.kkumulkkum.server.common.auth.jwt.JwtTokenProvider;
+import org.kkumulkkum.server.api.auth.dto.SocialUserDto;
+import org.kkumulkkum.server.domain.member.Member;
+import org.kkumulkkum.server.domain.user.Token;
+import org.kkumulkkum.server.domain.user.User;
+import org.kkumulkkum.server.domain.userinfo.UserInfo;
+import org.kkumulkkum.server.domain.user.Provider;
+import org.kkumulkkum.server.domain.user.Role;
+import org.kkumulkkum.server.api.auth.dto.request.UserLoginDto;
+import org.kkumulkkum.server.api.auth.dto.response.JwtTokenDto;
+import org.kkumulkkum.server.api.auth.dto.response.UserTokenDto;
+import org.kkumulkkum.server.common.exception.AuthException;
+import org.kkumulkkum.server.common.exception.code.AuthErrorCode;
+import org.kkumulkkum.server.domain.member.manager.MemberRemover;
+import org.kkumulkkum.server.domain.user.manager.UserSaver;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
diff --git a/src/main/java/org/kkumulkkum/server/auth/openfeign/kakao/service/KakaoService.java b/src/main/java/org/kkumulkkum/server/api/auth/service/KakaoService.java
similarity index 74%
rename from src/main/java/org/kkumulkkum/server/auth/openfeign/kakao/service/KakaoService.java
rename to src/main/java/org/kkumulkkum/server/api/auth/service/KakaoService.java
index b3b8f23..2abc8fb 100644
--- a/src/main/java/org/kkumulkkum/server/auth/openfeign/kakao/service/KakaoService.java
+++ b/src/main/java/org/kkumulkkum/server/api/auth/service/KakaoService.java
@@ -1,10 +1,10 @@
-package org.kkumulkkum.server.auth.openfeign.kakao.service;
+package org.kkumulkkum.server.api.auth.service;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.auth.openfeign.kakao.KakaoFeignClient;
-import org.kkumulkkum.server.auth.openfeign.kakao.dto.KakaoUserDto;
-import org.kkumulkkum.server.auth.openfeign.kakao.dto.SocialUserDto;
-import org.kkumulkkum.server.constant.AuthConstant;
+import org.kkumulkkum.server.external.service.kakao.KakaoFeignClient;
+import org.kkumulkkum.server.external.service.kakao.dto.KakaoUserDto;
+import org.kkumulkkum.server.api.auth.dto.SocialUserDto;
+import org.kkumulkkum.server.common.auth.constant.AuthConstant;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
 
diff --git a/src/main/java/org/kkumulkkum/server/auth/openfeign/apple/verify/AppleClientSecretGenerator.java b/src/main/java/org/kkumulkkum/server/api/auth/service/verify/AppleClientSecretGenerator.java
similarity index 97%
rename from src/main/java/org/kkumulkkum/server/auth/openfeign/apple/verify/AppleClientSecretGenerator.java
rename to src/main/java/org/kkumulkkum/server/api/auth/service/verify/AppleClientSecretGenerator.java
index b60594c..a38954c 100644
--- a/src/main/java/org/kkumulkkum/server/auth/openfeign/apple/verify/AppleClientSecretGenerator.java
+++ b/src/main/java/org/kkumulkkum/server/api/auth/service/verify/AppleClientSecretGenerator.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.auth.openfeign.apple.verify;
+package org.kkumulkkum.server.api.auth.service.verify;
 
 import io.jsonwebtoken.Jwts;
 import io.jsonwebtoken.SignatureAlgorithm;
diff --git a/src/main/java/org/kkumulkkum/server/auth/openfeign/apple/verify/AppleJwtParser.java b/src/main/java/org/kkumulkkum/server/api/auth/service/verify/AppleJwtParser.java
similarity index 88%
rename from src/main/java/org/kkumulkkum/server/auth/openfeign/apple/verify/AppleJwtParser.java
rename to src/main/java/org/kkumulkkum/server/api/auth/service/verify/AppleJwtParser.java
index e30f99f..7a4ba0d 100644
--- a/src/main/java/org/kkumulkkum/server/auth/openfeign/apple/verify/AppleJwtParser.java
+++ b/src/main/java/org/kkumulkkum/server/api/auth/service/verify/AppleJwtParser.java
@@ -1,11 +1,10 @@
-package org.kkumulkkum.server.auth.openfeign.apple.verify;
+package org.kkumulkkum.server.api.auth.service.verify;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import io.jsonwebtoken.*;
-import lombok.extern.slf4j.Slf4j;
-import org.kkumulkkum.server.exception.AuthException;
-import org.kkumulkkum.server.exception.code.AuthErrorCode;
+import org.kkumulkkum.server.common.exception.AuthException;
+import org.kkumulkkum.server.common.exception.code.AuthErrorCode;
 import org.springframework.stereotype.Component;
 
 import java.security.PublicKey;
diff --git a/src/main/java/org/kkumulkkum/server/auth/openfeign/apple/verify/PublicKeyGenerator.java b/src/main/java/org/kkumulkkum/server/api/auth/service/verify/PublicKeyGenerator.java
similarity index 84%
rename from src/main/java/org/kkumulkkum/server/auth/openfeign/apple/verify/PublicKeyGenerator.java
rename to src/main/java/org/kkumulkkum/server/api/auth/service/verify/PublicKeyGenerator.java
index 013a2fc..797d567 100644
--- a/src/main/java/org/kkumulkkum/server/auth/openfeign/apple/verify/PublicKeyGenerator.java
+++ b/src/main/java/org/kkumulkkum/server/api/auth/service/verify/PublicKeyGenerator.java
@@ -1,9 +1,9 @@
-package org.kkumulkkum.server.auth.openfeign.apple.verify;
+package org.kkumulkkum.server.api.auth.service.verify;
 
-import org.kkumulkkum.server.auth.openfeign.apple.dto.ApplePublicKey;
-import org.kkumulkkum.server.auth.openfeign.apple.dto.ApplePublicKeys;
-import org.kkumulkkum.server.exception.AuthException;
-import org.kkumulkkum.server.exception.code.AuthErrorCode;
+import org.kkumulkkum.server.api.auth.dto.verify.ApplePublicKey;
+import org.kkumulkkum.server.api.auth.dto.verify.ApplePublicKeys;
+import org.kkumulkkum.server.common.exception.AuthException;
+import org.kkumulkkum.server.common.exception.code.AuthErrorCode;
 import org.springframework.stereotype.Component;
 
 import java.math.BigInteger;
diff --git a/src/main/java/org/kkumulkkum/server/controller/TestController.java b/src/main/java/org/kkumulkkum/server/api/common/TestController.java
similarity index 63%
rename from src/main/java/org/kkumulkkum/server/controller/TestController.java
rename to src/main/java/org/kkumulkkum/server/api/common/TestController.java
index 97cff66..6c33727 100644
--- a/src/main/java/org/kkumulkkum/server/controller/TestController.java
+++ b/src/main/java/org/kkumulkkum/server/api/common/TestController.java
@@ -1,15 +1,13 @@
-package org.kkumulkkum.server.controller;
+package org.kkumulkkum.server.api.common;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.auth.jwt.JwtTokenProvider;
-import org.kkumulkkum.server.dto.auth.response.JwtTokenDto;
-import org.kkumulkkum.server.dto.test.TestDto;
-import org.kkumulkkum.server.exception.BusinessException;
-import org.kkumulkkum.server.exception.code.BusinessErrorCode;
+import org.kkumulkkum.server.common.auth.jwt.JwtTokenProvider;
+import org.kkumulkkum.server.api.auth.dto.response.JwtTokenDto;
+import org.kkumulkkum.server.common.exception.BusinessException;
+import org.kkumulkkum.server.common.exception.code.BusinessErrorCode;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
 @RestController
@@ -18,11 +16,6 @@ public class TestController {
 
     private final JwtTokenProvider jwtTokenProvider;
 
-    @GetMapping("/v1/test/dto")
-    public ResponseEntity<TestDto> testDto() {
-        return ResponseEntity.ok(new TestDto("test"));
-    }
-
     @GetMapping("/v1/test/default")
     public ResponseEntity<Void> testDefault() {
         throw new RuntimeException();
diff --git a/src/main/java/org/kkumulkkum/server/dto/common/ErrorDto.java b/src/main/java/org/kkumulkkum/server/api/common/dto/ErrorDto.java
similarity index 79%
rename from src/main/java/org/kkumulkkum/server/dto/common/ErrorDto.java
rename to src/main/java/org/kkumulkkum/server/api/common/dto/ErrorDto.java
index 145f306..0eefedd 100644
--- a/src/main/java/org/kkumulkkum/server/dto/common/ErrorDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/common/dto/ErrorDto.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.dto.common;
+package org.kkumulkkum.server.api.common.dto;
 
 public record ErrorDto(
         int code,
diff --git a/src/main/java/org/kkumulkkum/server/dto/common/ResponseDto.java b/src/main/java/org/kkumulkkum/server/api/common/dto/ResponseDto.java
similarity index 77%
rename from src/main/java/org/kkumulkkum/server/dto/common/ResponseDto.java
rename to src/main/java/org/kkumulkkum/server/api/common/dto/ResponseDto.java
index 5b260ae..9371819 100644
--- a/src/main/java/org/kkumulkkum/server/dto/common/ResponseDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/common/dto/ResponseDto.java
@@ -1,6 +1,6 @@
-package org.kkumulkkum.server.dto.common;
+package org.kkumulkkum.server.api.common.dto;
 
-import org.kkumulkkum.server.exception.code.DefaultErrorCode;
+import org.kkumulkkum.server.common.exception.code.DefaultErrorCode;
 
 public record ResponseDto<T> (
         boolean success,
diff --git a/src/main/java/org/kkumulkkum/server/controller/MeetingController.java b/src/main/java/org/kkumulkkum/server/api/meeting/controller/MeetingController.java
similarity index 79%
rename from src/main/java/org/kkumulkkum/server/controller/MeetingController.java
rename to src/main/java/org/kkumulkkum/server/api/meeting/controller/MeetingController.java
index 87f7c72..1b7aa66 100644
--- a/src/main/java/org/kkumulkkum/server/controller/MeetingController.java
+++ b/src/main/java/org/kkumulkkum/server/api/meeting/controller/MeetingController.java
@@ -1,17 +1,17 @@
-package org.kkumulkkum.server.controller;
+package org.kkumulkkum.server.api.meeting.controller;
 
 import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.annotation.IsMemberByMeetingId;
-import org.kkumulkkum.server.annotation.UserId;
-import org.kkumulkkum.server.dto.meeting.request.MeetingCreateDto;
-import org.kkumulkkum.server.dto.meeting.request.MeetingRegisterDto;
-import org.kkumulkkum.server.dto.meeting.response.CreatedMeetingDto;
-import org.kkumulkkum.server.dto.meeting.response.MeetingDto;
-import org.kkumulkkum.server.dto.meeting.response.MeetingIdDto;
-import org.kkumulkkum.server.dto.meeting.response.MeetingsDto;
-import org.kkumulkkum.server.dto.member.response.MembersDto;
-import org.kkumulkkum.server.service.meeting.MeetingService;
+import org.kkumulkkum.server.common.auth.annotation.IsMemberByMeetingId;
+import org.kkumulkkum.server.common.auth.annotation.UserId;
+import org.kkumulkkum.server.api.meeting.dto.request.MeetingCreateDto;
+import org.kkumulkkum.server.api.meeting.dto.request.MeetingRegisterDto;
+import org.kkumulkkum.server.api.meeting.dto.response.CreatedMeetingDto;
+import org.kkumulkkum.server.api.meeting.dto.response.MeetingDto;
+import org.kkumulkkum.server.api.meeting.dto.response.MeetingIdDto;
+import org.kkumulkkum.server.api.meeting.dto.response.MeetingsDto;
+import org.kkumulkkum.server.api.meeting.dto.response.MembersDto;
+import org.kkumulkkum.server.api.meeting.service.MeetingService;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
diff --git a/src/main/java/org/kkumulkkum/server/api/meeting/dto/MeetingMetCountDto.java b/src/main/java/org/kkumulkkum/server/api/meeting/dto/MeetingMetCountDto.java
new file mode 100644
index 0000000..c61e72b
--- /dev/null
+++ b/src/main/java/org/kkumulkkum/server/api/meeting/dto/MeetingMetCountDto.java
@@ -0,0 +1,9 @@
+package org.kkumulkkum.server.api.meeting.dto;
+
+import org.kkumulkkum.server.domain.meeting.Meeting;
+
+public record MeetingMetCountDto (
+        Meeting meeting,
+        Long metCount
+) {
+}
diff --git a/src/main/java/org/kkumulkkum/server/dto/meeting/request/MeetingCreateDto.java b/src/main/java/org/kkumulkkum/server/api/meeting/dto/request/MeetingCreateDto.java
similarity index 77%
rename from src/main/java/org/kkumulkkum/server/dto/meeting/request/MeetingCreateDto.java
rename to src/main/java/org/kkumulkkum/server/api/meeting/dto/request/MeetingCreateDto.java
index c027317..f21533a 100644
--- a/src/main/java/org/kkumulkkum/server/dto/meeting/request/MeetingCreateDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/meeting/dto/request/MeetingCreateDto.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.dto.meeting.request;
+package org.kkumulkkum.server.api.meeting.dto.request;
 
 import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.Size;
diff --git a/src/main/java/org/kkumulkkum/server/dto/meeting/request/MeetingRegisterDto.java b/src/main/java/org/kkumulkkum/server/api/meeting/dto/request/MeetingRegisterDto.java
similarity index 55%
rename from src/main/java/org/kkumulkkum/server/dto/meeting/request/MeetingRegisterDto.java
rename to src/main/java/org/kkumulkkum/server/api/meeting/dto/request/MeetingRegisterDto.java
index 27f60e1..8c6dc2f 100644
--- a/src/main/java/org/kkumulkkum/server/dto/meeting/request/MeetingRegisterDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/meeting/dto/request/MeetingRegisterDto.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.dto.meeting.request;
+package org.kkumulkkum.server.api.meeting.dto.request;
 
 public record MeetingRegisterDto (
     String invitationCode
diff --git a/src/main/java/org/kkumulkkum/server/dto/meeting/response/CreatedMeetingDto.java b/src/main/java/org/kkumulkkum/server/api/meeting/dto/response/CreatedMeetingDto.java
similarity index 62%
rename from src/main/java/org/kkumulkkum/server/dto/meeting/response/CreatedMeetingDto.java
rename to src/main/java/org/kkumulkkum/server/api/meeting/dto/response/CreatedMeetingDto.java
index 97d945d..2ff230e 100644
--- a/src/main/java/org/kkumulkkum/server/dto/meeting/response/CreatedMeetingDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/meeting/dto/response/CreatedMeetingDto.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.dto.meeting.response;
+package org.kkumulkkum.server.api.meeting.dto.response;
 
 public record CreatedMeetingDto(
         Long meetingId,
diff --git a/src/main/java/org/kkumulkkum/server/dto/meeting/response/MeetingDto.java b/src/main/java/org/kkumulkkum/server/api/meeting/dto/response/MeetingDto.java
similarity index 84%
rename from src/main/java/org/kkumulkkum/server/dto/meeting/response/MeetingDto.java
rename to src/main/java/org/kkumulkkum/server/api/meeting/dto/response/MeetingDto.java
index 1a219a1..2fcf536 100644
--- a/src/main/java/org/kkumulkkum/server/dto/meeting/response/MeetingDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/meeting/dto/response/MeetingDto.java
@@ -1,7 +1,7 @@
-package org.kkumulkkum.server.dto.meeting.response;
+package org.kkumulkkum.server.api.meeting.dto.response;
 
 import com.fasterxml.jackson.annotation.JsonFormat;
-import org.kkumulkkum.server.domain.Meeting;
+import org.kkumulkkum.server.domain.meeting.Meeting;
 
 import java.time.LocalDateTime;
 
diff --git a/src/main/java/org/kkumulkkum/server/dto/meeting/response/MeetingIdDto.java b/src/main/java/org/kkumulkkum/server/api/meeting/dto/response/MeetingIdDto.java
similarity index 60%
rename from src/main/java/org/kkumulkkum/server/dto/meeting/response/MeetingIdDto.java
rename to src/main/java/org/kkumulkkum/server/api/meeting/dto/response/MeetingIdDto.java
index eabbd58..dbed4ee 100644
--- a/src/main/java/org/kkumulkkum/server/dto/meeting/response/MeetingIdDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/meeting/dto/response/MeetingIdDto.java
@@ -1,6 +1,6 @@
-package org.kkumulkkum.server.dto.meeting.response;
+package org.kkumulkkum.server.api.meeting.dto.response;
 
-import org.kkumulkkum.server.domain.Meeting;
+import org.kkumulkkum.server.domain.meeting.Meeting;
 
 public record MeetingIdDto(
         Long meetingId
diff --git a/src/main/java/org/kkumulkkum/server/dto/meeting/response/MeetingsDto.java b/src/main/java/org/kkumulkkum/server/api/meeting/dto/response/MeetingsDto.java
similarity index 87%
rename from src/main/java/org/kkumulkkum/server/dto/meeting/response/MeetingsDto.java
rename to src/main/java/org/kkumulkkum/server/api/meeting/dto/response/MeetingsDto.java
index b718d8b..7b9a4ef 100644
--- a/src/main/java/org/kkumulkkum/server/dto/meeting/response/MeetingsDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/meeting/dto/response/MeetingsDto.java
@@ -1,6 +1,6 @@
-package org.kkumulkkum.server.dto.meeting.response;
+package org.kkumulkkum.server.api.meeting.dto.response;
 
-import org.kkumulkkum.server.domain.Meeting;
+import org.kkumulkkum.server.domain.meeting.Meeting;
 
 import java.util.List;
 
diff --git a/src/main/java/org/kkumulkkum/server/dto/member/response/MemberDto.java b/src/main/java/org/kkumulkkum/server/api/meeting/dto/response/MemberDto.java
similarity index 83%
rename from src/main/java/org/kkumulkkum/server/dto/member/response/MemberDto.java
rename to src/main/java/org/kkumulkkum/server/api/meeting/dto/response/MemberDto.java
index 77a9fcf..7274ded 100644
--- a/src/main/java/org/kkumulkkum/server/dto/member/response/MemberDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/meeting/dto/response/MemberDto.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.dto.member.response;
+package org.kkumulkkum.server.api.meeting.dto.response;
 
 public record MemberDto(
         Long memberId,
diff --git a/src/main/java/org/kkumulkkum/server/dto/member/response/MembersDto.java b/src/main/java/org/kkumulkkum/server/api/meeting/dto/response/MembersDto.java
similarity index 83%
rename from src/main/java/org/kkumulkkum/server/dto/member/response/MembersDto.java
rename to src/main/java/org/kkumulkkum/server/api/meeting/dto/response/MembersDto.java
index 3875f92..aeab1c6 100644
--- a/src/main/java/org/kkumulkkum/server/dto/member/response/MembersDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/meeting/dto/response/MembersDto.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.dto.member.response;
+package org.kkumulkkum.server.api.meeting.dto.response;
 
 import java.util.List;
 
diff --git a/src/main/java/org/kkumulkkum/server/service/meeting/MeetingService.java b/src/main/java/org/kkumulkkum/server/api/meeting/service/MeetingService.java
similarity index 76%
rename from src/main/java/org/kkumulkkum/server/service/meeting/MeetingService.java
rename to src/main/java/org/kkumulkkum/server/api/meeting/service/MeetingService.java
index 939266c..d455f56 100644
--- a/src/main/java/org/kkumulkkum/server/service/meeting/MeetingService.java
+++ b/src/main/java/org/kkumulkkum/server/api/meeting/service/MeetingService.java
@@ -1,28 +1,31 @@
-package org.kkumulkkum.server.service.meeting;
+package org.kkumulkkum.server.api.meeting.service;
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.kkumulkkum.server.domain.Meeting;
-import org.kkumulkkum.server.domain.Member;
-import org.kkumulkkum.server.domain.Promise;
-import org.kkumulkkum.server.dto.meeting.MeetingMetCountDto;
-import org.kkumulkkum.server.dto.meeting.request.MeetingCreateDto;
-import org.kkumulkkum.server.dto.meeting.request.MeetingRegisterDto;
-import org.kkumulkkum.server.dto.meeting.response.CreatedMeetingDto;
-import org.kkumulkkum.server.dto.meeting.response.MeetingDto;
-import org.kkumulkkum.server.dto.meeting.response.MeetingsDto;
-import org.kkumulkkum.server.dto.member.response.MemberDto;
-import org.kkumulkkum.server.dto.member.response.MembersDto;
-import org.kkumulkkum.server.exception.MeetingException;
-import org.kkumulkkum.server.exception.code.MeetingErrorCode;
-import org.kkumulkkum.server.service.member.MemberRemover;
-import org.kkumulkkum.server.service.member.MemberRetreiver;
-import org.kkumulkkum.server.service.member.MemberSaver;
-import org.kkumulkkum.server.service.participant.ParticipantRemover;
-import org.kkumulkkum.server.service.participant.ParticipantRetriever;
-import org.kkumulkkum.server.service.promise.PromiseRemover;
-import org.kkumulkkum.server.service.promise.PromiseRetriever;
-import org.kkumulkkum.server.service.user.UserRetriever;
+import org.kkumulkkum.server.domain.meeting.manager.MeetingEditor;
+import org.kkumulkkum.server.domain.meeting.manager.MeetingRemover;
+import org.kkumulkkum.server.domain.meeting.manager.MeetingRetriever;
+import org.kkumulkkum.server.domain.meeting.manager.MeetingSaver;
+import org.kkumulkkum.server.domain.member.manager.MemberRemover;
+import org.kkumulkkum.server.domain.member.manager.MemberRetreiver;
+import org.kkumulkkum.server.domain.member.manager.MemberSaver;
+import org.kkumulkkum.server.domain.meeting.Meeting;
+import org.kkumulkkum.server.domain.member.Member;
+import org.kkumulkkum.server.api.meeting.dto.MeetingMetCountDto;
+import org.kkumulkkum.server.api.meeting.dto.request.MeetingCreateDto;
+import org.kkumulkkum.server.api.meeting.dto.request.MeetingRegisterDto;
+import org.kkumulkkum.server.api.meeting.dto.response.CreatedMeetingDto;
+import org.kkumulkkum.server.api.meeting.dto.response.MeetingDto;
+import org.kkumulkkum.server.api.meeting.dto.response.MeetingsDto;
+import org.kkumulkkum.server.api.meeting.dto.response.MemberDto;
+import org.kkumulkkum.server.api.meeting.dto.response.MembersDto;
+import org.kkumulkkum.server.common.exception.MeetingException;
+import org.kkumulkkum.server.common.exception.code.MeetingErrorCode;
+import org.kkumulkkum.server.domain.participant.manager.ParticipantRemover;
+import org.kkumulkkum.server.domain.participant.manager.ParticipantRetriever;
+import org.kkumulkkum.server.domain.promise.manager.PromiseRemover;
+import org.kkumulkkum.server.domain.promise.manager.PromiseRetriever;
+import org.kkumulkkum.server.domain.user.manager.UserRetriever;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
diff --git a/src/main/java/org/kkumulkkum/server/controller/ParticipantController.java b/src/main/java/org/kkumulkkum/server/api/participant/controller/ParticipantController.java
similarity index 82%
rename from src/main/java/org/kkumulkkum/server/controller/ParticipantController.java
rename to src/main/java/org/kkumulkkum/server/api/participant/controller/ParticipantController.java
index b682d47..08248b9 100644
--- a/src/main/java/org/kkumulkkum/server/controller/ParticipantController.java
+++ b/src/main/java/org/kkumulkkum/server/api/participant/controller/ParticipantController.java
@@ -1,15 +1,15 @@
-package org.kkumulkkum.server.controller;
+package org.kkumulkkum.server.api.participant.controller;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.annotation.IsMemberByPromiseId;
-import org.kkumulkkum.server.annotation.IsParticipant;
-import org.kkumulkkum.server.annotation.UserId;
-import org.kkumulkkum.server.dto.participant.request.PreparationInfoDto;
-import org.kkumulkkum.server.dto.participant.response.AvailableParticipantsDto;
-import org.kkumulkkum.server.dto.participant.response.LateComersDto;
-import org.kkumulkkum.server.dto.participant.response.ParticipantsDto;
-import org.kkumulkkum.server.dto.participant.response.PreparationStatusDto;
-import org.kkumulkkum.server.service.participant.ParticipantService;
+import org.kkumulkkum.server.common.auth.annotation.IsMemberByPromiseId;
+import org.kkumulkkum.server.common.auth.annotation.IsParticipant;
+import org.kkumulkkum.server.common.auth.annotation.UserId;
+import org.kkumulkkum.server.api.participant.dto.request.PreparationInfoDto;
+import org.kkumulkkum.server.api.participant.dto.response.AvailableParticipantsDto;
+import org.kkumulkkum.server.api.participant.dto.response.LateComersDto;
+import org.kkumulkkum.server.api.participant.dto.response.ParticipantsDto;
+import org.kkumulkkum.server.api.participant.dto.response.PreparationStatusDto;
+import org.kkumulkkum.server.api.participant.service.ParticipantService;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
diff --git a/src/main/java/org/kkumulkkum/server/dto/participant/ParticipantStatusUserInfoDto.java b/src/main/java/org/kkumulkkum/server/api/participant/dto/ParticipantStatusUserInfoDto.java
similarity index 94%
rename from src/main/java/org/kkumulkkum/server/dto/participant/ParticipantStatusUserInfoDto.java
rename to src/main/java/org/kkumulkkum/server/api/participant/dto/ParticipantStatusUserInfoDto.java
index 698355b..3359078 100644
--- a/src/main/java/org/kkumulkkum/server/dto/participant/ParticipantStatusUserInfoDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/participant/dto/ParticipantStatusUserInfoDto.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.dto.participant;
+package org.kkumulkkum.server.api.participant.dto;
 
 import java.time.LocalDateTime;
 
diff --git a/src/main/java/org/kkumulkkum/server/dto/participant/request/PreparationInfoDto.java b/src/main/java/org/kkumulkkum/server/api/participant/dto/request/PreparationInfoDto.java
similarity index 77%
rename from src/main/java/org/kkumulkkum/server/dto/participant/request/PreparationInfoDto.java
rename to src/main/java/org/kkumulkkum/server/api/participant/dto/request/PreparationInfoDto.java
index 7ee79a5..fedacdd 100644
--- a/src/main/java/org/kkumulkkum/server/dto/participant/request/PreparationInfoDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/participant/dto/request/PreparationInfoDto.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.dto.participant.request;
+package org.kkumulkkum.server.api.participant.dto.request;
 
 import jakarta.validation.constraints.Size;
 
diff --git a/src/main/java/org/kkumulkkum/server/dto/participant/response/AvailableParticipantsDto.java b/src/main/java/org/kkumulkkum/server/api/participant/dto/response/AvailableParticipantsDto.java
similarity index 90%
rename from src/main/java/org/kkumulkkum/server/dto/participant/response/AvailableParticipantsDto.java
rename to src/main/java/org/kkumulkkum/server/api/participant/dto/response/AvailableParticipantsDto.java
index c58e0c0..20c5bbc 100644
--- a/src/main/java/org/kkumulkkum/server/dto/participant/response/AvailableParticipantsDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/participant/dto/response/AvailableParticipantsDto.java
@@ -1,6 +1,6 @@
-package org.kkumulkkum.server.dto.participant.response;
+package org.kkumulkkum.server.api.participant.dto.response;
 
-import org.kkumulkkum.server.dto.member.response.MemberDto;
+import org.kkumulkkum.server.api.meeting.dto.response.MemberDto;
 
 import java.util.List;
 public record AvailableParticipantsDto(
diff --git a/src/main/java/org/kkumulkkum/server/dto/participant/response/LateComerDto.java b/src/main/java/org/kkumulkkum/server/api/participant/dto/response/LateComerDto.java
similarity index 83%
rename from src/main/java/org/kkumulkkum/server/dto/participant/response/LateComerDto.java
rename to src/main/java/org/kkumulkkum/server/api/participant/dto/response/LateComerDto.java
index 70a744a..cf84f81 100644
--- a/src/main/java/org/kkumulkkum/server/dto/participant/response/LateComerDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/participant/dto/response/LateComerDto.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.dto.participant.response;
+package org.kkumulkkum.server.api.participant.dto.response;
 
 public record LateComerDto(
         Long participantId,
diff --git a/src/main/java/org/kkumulkkum/server/dto/participant/response/LateComersDto.java b/src/main/java/org/kkumulkkum/server/api/participant/dto/response/LateComersDto.java
similarity index 81%
rename from src/main/java/org/kkumulkkum/server/dto/participant/response/LateComersDto.java
rename to src/main/java/org/kkumulkkum/server/api/participant/dto/response/LateComersDto.java
index 61aa81a..94546e0 100644
--- a/src/main/java/org/kkumulkkum/server/dto/participant/response/LateComersDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/participant/dto/response/LateComersDto.java
@@ -1,6 +1,6 @@
-package org.kkumulkkum.server.dto.participant.response;
+package org.kkumulkkum.server.api.participant.dto.response;
 
-import org.kkumulkkum.server.domain.Promise;
+import org.kkumulkkum.server.domain.promise.Promise;
 
 import java.time.LocalDateTime;
 import java.util.List;
diff --git a/src/main/java/org/kkumulkkum/server/dto/participant/response/ParticipantDto.java b/src/main/java/org/kkumulkkum/server/api/participant/dto/response/ParticipantDto.java
similarity index 88%
rename from src/main/java/org/kkumulkkum/server/dto/participant/response/ParticipantDto.java
rename to src/main/java/org/kkumulkkum/server/api/participant/dto/response/ParticipantDto.java
index 5a3a277..29770b1 100644
--- a/src/main/java/org/kkumulkkum/server/dto/participant/response/ParticipantDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/participant/dto/response/ParticipantDto.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.dto.participant.response;
+package org.kkumulkkum.server.api.participant.dto.response;
 
 public record ParticipantDto(
         Long participantId,
diff --git a/src/main/java/org/kkumulkkum/server/dto/participant/response/ParticipantsDto.java b/src/main/java/org/kkumulkkum/server/api/participant/dto/response/ParticipantsDto.java
similarity index 84%
rename from src/main/java/org/kkumulkkum/server/dto/participant/response/ParticipantsDto.java
rename to src/main/java/org/kkumulkkum/server/api/participant/dto/response/ParticipantsDto.java
index 2defecd..4485be2 100644
--- a/src/main/java/org/kkumulkkum/server/dto/participant/response/ParticipantsDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/participant/dto/response/ParticipantsDto.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.dto.participant.response;
+package org.kkumulkkum.server.api.participant.dto.response;
 
 import java.util.List;
 
diff --git a/src/main/java/org/kkumulkkum/server/dto/participant/response/PreparationStatusDto.java b/src/main/java/org/kkumulkkum/server/api/participant/dto/response/PreparationStatusDto.java
similarity index 90%
rename from src/main/java/org/kkumulkkum/server/dto/participant/response/PreparationStatusDto.java
rename to src/main/java/org/kkumulkkum/server/api/participant/dto/response/PreparationStatusDto.java
index 5e5f167..d85fbcf 100644
--- a/src/main/java/org/kkumulkkum/server/dto/participant/response/PreparationStatusDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/participant/dto/response/PreparationStatusDto.java
@@ -1,7 +1,7 @@
-package org.kkumulkkum.server.dto.participant.response;
+package org.kkumulkkum.server.api.participant.dto.response;
 
 import com.fasterxml.jackson.annotation.JsonFormat;
-import org.kkumulkkum.server.domain.Participant;
+import org.kkumulkkum.server.domain.participant.Participant;
 
 import java.time.LocalDateTime;
 
diff --git a/src/main/java/org/kkumulkkum/server/service/participant/ParticipantService.java b/src/main/java/org/kkumulkkum/server/api/participant/service/ParticipantService.java
similarity index 87%
rename from src/main/java/org/kkumulkkum/server/service/participant/ParticipantService.java
rename to src/main/java/org/kkumulkkum/server/api/participant/service/ParticipantService.java
index 76849d0..0b055f2 100644
--- a/src/main/java/org/kkumulkkum/server/service/participant/ParticipantService.java
+++ b/src/main/java/org/kkumulkkum/server/api/participant/service/ParticipantService.java
@@ -1,22 +1,25 @@
-package org.kkumulkkum.server.service.participant;
+package org.kkumulkkum.server.api.participant.service;
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.kkumulkkum.server.domain.Member;
-import org.kkumulkkum.server.domain.Participant;
-import org.kkumulkkum.server.domain.Promise;
-import org.kkumulkkum.server.dto.member.response.MemberDto;
-import org.kkumulkkum.server.dto.participant.ParticipantStatusUserInfoDto;
-import org.kkumulkkum.server.dto.participant.request.PreparationInfoDto;
-import org.kkumulkkum.server.dto.participant.response.*;
-import org.kkumulkkum.server.exception.ParticipantException;
-import org.kkumulkkum.server.exception.code.ParticipantErrorCode;
-import org.kkumulkkum.server.external.FcmService;
-import org.kkumulkkum.server.external.dto.FcmMessageDto;
-import org.kkumulkkum.server.external.enums.FcmContent;
-import org.kkumulkkum.server.service.member.MemberRetreiver;
-import org.kkumulkkum.server.service.promise.PromiseRemover;
-import org.kkumulkkum.server.service.promise.PromiseRetriever;
+import org.kkumulkkum.server.domain.participant.manager.ParticipantEditor;
+import org.kkumulkkum.server.domain.participant.manager.ParticipantRemover;
+import org.kkumulkkum.server.domain.participant.manager.ParticipantRetriever;
+import org.kkumulkkum.server.api.participant.dto.response.*;
+import org.kkumulkkum.server.domain.member.Member;
+import org.kkumulkkum.server.domain.participant.Participant;
+import org.kkumulkkum.server.domain.promise.Promise;
+import org.kkumulkkum.server.api.meeting.dto.response.MemberDto;
+import org.kkumulkkum.server.api.participant.dto.ParticipantStatusUserInfoDto;
+import org.kkumulkkum.server.api.participant.dto.request.PreparationInfoDto;
+import org.kkumulkkum.server.common.exception.ParticipantException;
+import org.kkumulkkum.server.common.exception.code.ParticipantErrorCode;
+import org.kkumulkkum.server.external.service.fcm.FcmService;
+import org.kkumulkkum.server.external.service.fcm.dto.FcmMessageDto;
+import org.kkumulkkum.server.external.service.fcm.FcmContent;
+import org.kkumulkkum.server.domain.member.manager.MemberRetreiver;
+import org.kkumulkkum.server.domain.promise.manager.PromiseRemover;
+import org.kkumulkkum.server.domain.promise.manager.PromiseRetriever;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
diff --git a/src/main/java/org/kkumulkkum/server/controller/PromiseController.java b/src/main/java/org/kkumulkkum/server/api/promise/controller/PromiseController.java
similarity index 86%
rename from src/main/java/org/kkumulkkum/server/controller/PromiseController.java
rename to src/main/java/org/kkumulkkum/server/api/promise/controller/PromiseController.java
index 1013d89..d7d924f 100644
--- a/src/main/java/org/kkumulkkum/server/controller/PromiseController.java
+++ b/src/main/java/org/kkumulkkum/server/api/promise/controller/PromiseController.java
@@ -1,14 +1,14 @@
-package org.kkumulkkum.server.controller;
+package org.kkumulkkum.server.api.promise.controller;
 
 import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.annotation.IsMemberByMeetingId;
-import org.kkumulkkum.server.annotation.IsMemberByPromiseId;
-import org.kkumulkkum.server.annotation.IsParticipant;
-import org.kkumulkkum.server.annotation.UserId;
-import org.kkumulkkum.server.dto.promise.PromiseCreateDto;
-import org.kkumulkkum.server.dto.promise.response.*;
-import org.kkumulkkum.server.service.promise.PromiseService;
+import org.kkumulkkum.server.common.auth.annotation.IsMemberByMeetingId;
+import org.kkumulkkum.server.common.auth.annotation.IsMemberByPromiseId;
+import org.kkumulkkum.server.common.auth.annotation.IsParticipant;
+import org.kkumulkkum.server.common.auth.annotation.UserId;
+import org.kkumulkkum.server.api.promise.dto.request.PromiseCreateDto;
+import org.kkumulkkum.server.api.promise.dto.response.*;
+import org.kkumulkkum.server.api.promise.service.PromiseService;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
diff --git a/src/main/java/org/kkumulkkum/server/dto/promise/PromiseCreateDto.java b/src/main/java/org/kkumulkkum/server/api/promise/dto/request/PromiseCreateDto.java
similarity index 87%
rename from src/main/java/org/kkumulkkum/server/dto/promise/PromiseCreateDto.java
rename to src/main/java/org/kkumulkkum/server/api/promise/dto/request/PromiseCreateDto.java
index 73623c7..5d30217 100644
--- a/src/main/java/org/kkumulkkum/server/dto/promise/PromiseCreateDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/promise/dto/request/PromiseCreateDto.java
@@ -1,11 +1,11 @@
-package org.kkumulkkum.server.dto.promise;
+package org.kkumulkkum.server.api.promise.dto.request;
 
 import com.fasterxml.jackson.annotation.JsonFormat;
 import jakarta.annotation.Nullable;
 import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.NotNull;
 import jakarta.validation.constraints.Size;
-import org.kkumulkkum.server.domain.enums.DressUpLevel;
+import org.kkumulkkum.server.domain.promise.DressUpLevel;
 
 import java.time.LocalDateTime;
 import java.util.List;
diff --git a/src/main/java/org/kkumulkkum/server/dto/promise/response/MainPromiseDto.java b/src/main/java/org/kkumulkkum/server/api/promise/dto/response/MainPromiseDto.java
similarity index 89%
rename from src/main/java/org/kkumulkkum/server/dto/promise/response/MainPromiseDto.java
rename to src/main/java/org/kkumulkkum/server/api/promise/dto/response/MainPromiseDto.java
index 57905f8..466bd93 100644
--- a/src/main/java/org/kkumulkkum/server/dto/promise/response/MainPromiseDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/promise/dto/response/MainPromiseDto.java
@@ -1,7 +1,7 @@
-package org.kkumulkkum.server.dto.promise.response;
+package org.kkumulkkum.server.api.promise.dto.response;
 
 import com.fasterxml.jackson.annotation.JsonFormat;
-import org.kkumulkkum.server.domain.Promise;
+import org.kkumulkkum.server.domain.promise.Promise;
 
 import java.time.LocalDateTime;
 import java.time.temporal.ChronoUnit;
diff --git a/src/main/java/org/kkumulkkum/server/dto/promise/response/MainPromisesDto.java b/src/main/java/org/kkumulkkum/server/api/promise/dto/response/MainPromisesDto.java
similarity index 75%
rename from src/main/java/org/kkumulkkum/server/dto/promise/response/MainPromisesDto.java
rename to src/main/java/org/kkumulkkum/server/api/promise/dto/response/MainPromisesDto.java
index a8baa67..7109652 100644
--- a/src/main/java/org/kkumulkkum/server/dto/promise/response/MainPromisesDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/promise/dto/response/MainPromisesDto.java
@@ -1,6 +1,6 @@
-package org.kkumulkkum.server.dto.promise.response;
+package org.kkumulkkum.server.api.promise.dto.response;
 
-import org.kkumulkkum.server.domain.Promise;
+import org.kkumulkkum.server.domain.promise.Promise;
 
 import java.util.List;
 
diff --git a/src/main/java/org/kkumulkkum/server/dto/promise/response/PromiseAddDto.java b/src/main/java/org/kkumulkkum/server/api/promise/dto/response/PromiseAddDto.java
similarity index 88%
rename from src/main/java/org/kkumulkkum/server/dto/promise/response/PromiseAddDto.java
rename to src/main/java/org/kkumulkkum/server/api/promise/dto/response/PromiseAddDto.java
index 343e235..70faaa3 100644
--- a/src/main/java/org/kkumulkkum/server/dto/promise/response/PromiseAddDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/promise/dto/response/PromiseAddDto.java
@@ -1,7 +1,7 @@
-package org.kkumulkkum.server.dto.promise.response;
+package org.kkumulkkum.server.api.promise.dto.response;
 
 import com.fasterxml.jackson.annotation.JsonFormat;
-import org.kkumulkkum.server.domain.Promise;
+import org.kkumulkkum.server.domain.promise.Promise;
 
 import java.time.LocalDateTime;
 
diff --git a/src/main/java/org/kkumulkkum/server/dto/promise/response/PromiseDetailDto.java b/src/main/java/org/kkumulkkum/server/api/promise/dto/response/PromiseDetailDto.java
similarity index 90%
rename from src/main/java/org/kkumulkkum/server/dto/promise/response/PromiseDetailDto.java
rename to src/main/java/org/kkumulkkum/server/api/promise/dto/response/PromiseDetailDto.java
index a162069..b341ed4 100644
--- a/src/main/java/org/kkumulkkum/server/dto/promise/response/PromiseDetailDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/promise/dto/response/PromiseDetailDto.java
@@ -1,7 +1,7 @@
-package org.kkumulkkum.server.dto.promise.response;
+package org.kkumulkkum.server.api.promise.dto.response;
 
 import com.fasterxml.jackson.annotation.JsonFormat;
-import org.kkumulkkum.server.domain.Promise;
+import org.kkumulkkum.server.domain.promise.Promise;
 
 import java.time.LocalDateTime;
 
diff --git a/src/main/java/org/kkumulkkum/server/dto/promise/response/PromisesDto.java b/src/main/java/org/kkumulkkum/server/api/promise/dto/response/PromisesDto.java
similarity index 91%
rename from src/main/java/org/kkumulkkum/server/dto/promise/response/PromisesDto.java
rename to src/main/java/org/kkumulkkum/server/api/promise/dto/response/PromisesDto.java
index 6bafac8..3209e39 100644
--- a/src/main/java/org/kkumulkkum/server/dto/promise/response/PromisesDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/promise/dto/response/PromisesDto.java
@@ -1,7 +1,7 @@
-package org.kkumulkkum.server.dto.promise.response;
+package org.kkumulkkum.server.api.promise.dto.response;
 
 import com.fasterxml.jackson.annotation.JsonFormat;
-import org.kkumulkkum.server.domain.Promise;
+import org.kkumulkkum.server.domain.promise.Promise;
 
 import java.time.LocalDateTime;
 import java.time.temporal.ChronoUnit;
diff --git a/src/main/java/org/kkumulkkum/server/service/promise/PromiseService.java b/src/main/java/org/kkumulkkum/server/api/promise/service/PromiseService.java
similarity index 87%
rename from src/main/java/org/kkumulkkum/server/service/promise/PromiseService.java
rename to src/main/java/org/kkumulkkum/server/api/promise/service/PromiseService.java
index 3f42feb..0ba5c38 100644
--- a/src/main/java/org/kkumulkkum/server/service/promise/PromiseService.java
+++ b/src/main/java/org/kkumulkkum/server/api/promise/service/PromiseService.java
@@ -1,17 +1,25 @@
-package org.kkumulkkum.server.service.promise;
+package org.kkumulkkum.server.api.promise.service;
 
 import jakarta.persistence.EntityManager;
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.*;
-import org.kkumulkkum.server.dto.promise.PromiseCreateDto;
-import org.kkumulkkum.server.dto.promise.response.*;
-import org.kkumulkkum.server.exception.PromiseException;
-import org.kkumulkkum.server.exception.code.PromiseErrorCode;
-import org.kkumulkkum.server.service.member.MemberRetreiver;
-import org.kkumulkkum.server.service.participant.ParticipantRemover;
-import org.kkumulkkum.server.service.participant.ParticipantRetriever;
-import org.kkumulkkum.server.service.participant.ParticipantSaver;
-import org.kkumulkkum.server.service.userInfo.UserInfoRetriever;
+import org.kkumulkkum.server.domain.promise.manager.PromiseEditor;
+import org.kkumulkkum.server.domain.promise.manager.PromiseRemover;
+import org.kkumulkkum.server.domain.promise.manager.PromiseRetriever;
+import org.kkumulkkum.server.domain.promise.manager.PromiseSaver;
+import org.kkumulkkum.server.api.promise.dto.response.*;
+import org.kkumulkkum.server.domain.meeting.Meeting;
+import org.kkumulkkum.server.domain.member.Member;
+import org.kkumulkkum.server.domain.participant.Participant;
+import org.kkumulkkum.server.domain.promise.Promise;
+import org.kkumulkkum.server.domain.userinfo.UserInfo;
+import org.kkumulkkum.server.api.promise.dto.request.PromiseCreateDto;
+import org.kkumulkkum.server.common.exception.PromiseException;
+import org.kkumulkkum.server.common.exception.code.PromiseErrorCode;
+import org.kkumulkkum.server.domain.member.manager.MemberRetreiver;
+import org.kkumulkkum.server.domain.participant.manager.ParticipantRemover;
+import org.kkumulkkum.server.domain.participant.manager.ParticipantRetriever;
+import org.kkumulkkum.server.domain.participant.manager.ParticipantSaver;
+import org.kkumulkkum.server.domain.userinfo.manager.UserInfoRetriever;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
diff --git a/src/main/java/org/kkumulkkum/server/controller/UserController.java b/src/main/java/org/kkumulkkum/server/api/user/controller/UserController.java
similarity index 75%
rename from src/main/java/org/kkumulkkum/server/controller/UserController.java
rename to src/main/java/org/kkumulkkum/server/api/user/controller/UserController.java
index 9588aa3..b080d18 100644
--- a/src/main/java/org/kkumulkkum/server/controller/UserController.java
+++ b/src/main/java/org/kkumulkkum/server/api/user/controller/UserController.java
@@ -1,13 +1,13 @@
-package org.kkumulkkum.server.controller;
+package org.kkumulkkum.server.api.user.controller;
 
 import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.annotation.UserId;
-import org.kkumulkkum.server.dto.user.request.ImageUpdateDto;
-import org.kkumulkkum.server.dto.user.request.NameUpdateDto;
-import org.kkumulkkum.server.dto.user.response.UserDto;
-import org.kkumulkkum.server.dto.user.response.UserNameDto;
-import org.kkumulkkum.server.service.user.UserService;
+import org.kkumulkkum.server.common.auth.annotation.UserId;
+import org.kkumulkkum.server.api.user.dto.request.ImageUpdateDto;
+import org.kkumulkkum.server.api.user.dto.request.NameUpdateDto;
+import org.kkumulkkum.server.api.user.dto.response.UserDto;
+import org.kkumulkkum.server.api.user.dto.response.UserNameDto;
+import org.kkumulkkum.server.api.user.service.UserService;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
diff --git a/src/main/java/org/kkumulkkum/server/dto/user/request/ImageUpdateDto.java b/src/main/java/org/kkumulkkum/server/api/user/dto/request/ImageUpdateDto.java
similarity index 78%
rename from src/main/java/org/kkumulkkum/server/dto/user/request/ImageUpdateDto.java
rename to src/main/java/org/kkumulkkum/server/api/user/dto/request/ImageUpdateDto.java
index 84c5e7f..3816e16 100644
--- a/src/main/java/org/kkumulkkum/server/dto/user/request/ImageUpdateDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/user/dto/request/ImageUpdateDto.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.dto.user.request;
+package org.kkumulkkum.server.api.user.dto.request;
 
 import jakarta.validation.constraints.NotNull;
 import org.springframework.web.multipart.MultipartFile;
diff --git a/src/main/java/org/kkumulkkum/server/dto/user/request/NameUpdateDto.java b/src/main/java/org/kkumulkkum/server/api/user/dto/request/NameUpdateDto.java
similarity index 77%
rename from src/main/java/org/kkumulkkum/server/dto/user/request/NameUpdateDto.java
rename to src/main/java/org/kkumulkkum/server/api/user/dto/request/NameUpdateDto.java
index 445caf2..3a5ea08 100644
--- a/src/main/java/org/kkumulkkum/server/dto/user/request/NameUpdateDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/user/dto/request/NameUpdateDto.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.dto.user.request;
+package org.kkumulkkum.server.api.user.dto.request;
 
 import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.Size;
diff --git a/src/main/java/org/kkumulkkum/server/dto/user/response/UserDto.java b/src/main/java/org/kkumulkkum/server/api/user/dto/response/UserDto.java
similarity index 84%
rename from src/main/java/org/kkumulkkum/server/dto/user/response/UserDto.java
rename to src/main/java/org/kkumulkkum/server/api/user/dto/response/UserDto.java
index 0e0d86e..3ca0576 100644
--- a/src/main/java/org/kkumulkkum/server/dto/user/response/UserDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/user/dto/response/UserDto.java
@@ -1,6 +1,6 @@
-package org.kkumulkkum.server.dto.user.response;
+package org.kkumulkkum.server.api.user.dto.response;
 
-import org.kkumulkkum.server.domain.UserInfo;
+import org.kkumulkkum.server.domain.userinfo.UserInfo;
 
 public record UserDto(
         Long userId,
diff --git a/src/main/java/org/kkumulkkum/server/dto/user/response/UserNameDto.java b/src/main/java/org/kkumulkkum/server/api/user/dto/response/UserNameDto.java
similarity index 61%
rename from src/main/java/org/kkumulkkum/server/dto/user/response/UserNameDto.java
rename to src/main/java/org/kkumulkkum/server/api/user/dto/response/UserNameDto.java
index 44e683b..f93ba10 100644
--- a/src/main/java/org/kkumulkkum/server/dto/user/response/UserNameDto.java
+++ b/src/main/java/org/kkumulkkum/server/api/user/dto/response/UserNameDto.java
@@ -1,6 +1,6 @@
-package org.kkumulkkum.server.dto.user.response;
+package org.kkumulkkum.server.api.user.dto.response;
 
-import org.kkumulkkum.server.domain.UserInfo;
+import org.kkumulkkum.server.domain.userinfo.UserInfo;
 
 public record UserNameDto(
         String name
diff --git a/src/main/java/org/kkumulkkum/server/service/user/UserService.java b/src/main/java/org/kkumulkkum/server/api/user/service/UserService.java
similarity index 79%
rename from src/main/java/org/kkumulkkum/server/service/user/UserService.java
rename to src/main/java/org/kkumulkkum/server/api/user/service/UserService.java
index cc97b46..a708df9 100644
--- a/src/main/java/org/kkumulkkum/server/service/user/UserService.java
+++ b/src/main/java/org/kkumulkkum/server/api/user/service/UserService.java
@@ -1,17 +1,17 @@
-package org.kkumulkkum.server.service.user;
+package org.kkumulkkum.server.api.user.service;
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.kkumulkkum.server.domain.UserInfo;
-import org.kkumulkkum.server.dto.user.request.ImageUpdateDto;
-import org.kkumulkkum.server.dto.user.request.NameUpdateDto;
-import org.kkumulkkum.server.dto.user.response.UserDto;
-import org.kkumulkkum.server.dto.user.response.UserNameDto;
-import org.kkumulkkum.server.exception.AwsException;
-import org.kkumulkkum.server.exception.code.AwsErrorCode;
-import org.kkumulkkum.server.external.S3Service;
-import org.kkumulkkum.server.service.userInfo.UserInfoEditor;
-import org.kkumulkkum.server.service.userInfo.UserInfoRetriever;
+import org.kkumulkkum.server.domain.userinfo.manager.UserInfoEditor;
+import org.kkumulkkum.server.domain.userinfo.UserInfo;
+import org.kkumulkkum.server.api.user.dto.request.ImageUpdateDto;
+import org.kkumulkkum.server.api.user.dto.request.NameUpdateDto;
+import org.kkumulkkum.server.api.user.dto.response.UserDto;
+import org.kkumulkkum.server.api.user.dto.response.UserNameDto;
+import org.kkumulkkum.server.common.exception.AwsException;
+import org.kkumulkkum.server.common.exception.code.AwsErrorCode;
+import org.kkumulkkum.server.external.service.s3.S3Service;
+import org.kkumulkkum.server.domain.userinfo.manager.UserInfoRetriever;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
diff --git a/src/main/java/org/kkumulkkum/server/auth/openfeign/kakao/dto/KakaoAccount.java b/src/main/java/org/kkumulkkum/server/auth/openfeign/kakao/dto/KakaoAccount.java
deleted file mode 100644
index c5ab69f..0000000
--- a/src/main/java/org/kkumulkkum/server/auth/openfeign/kakao/dto/KakaoAccount.java
+++ /dev/null
@@ -1,6 +0,0 @@
-package org.kkumulkkum.server.auth.openfeign.kakao.dto;
-
-public record KakaoAccount(
-        String email
-) {
-}
diff --git a/src/main/java/org/kkumulkkum/server/advice/ResponseDtoAdvice.java b/src/main/java/org/kkumulkkum/server/common/advice/ResponseDtoAdvice.java
similarity index 84%
rename from src/main/java/org/kkumulkkum/server/advice/ResponseDtoAdvice.java
rename to src/main/java/org/kkumulkkum/server/common/advice/ResponseDtoAdvice.java
index 9654001..6895f1a 100644
--- a/src/main/java/org/kkumulkkum/server/advice/ResponseDtoAdvice.java
+++ b/src/main/java/org/kkumulkkum/server/common/advice/ResponseDtoAdvice.java
@@ -1,7 +1,7 @@
-package org.kkumulkkum.server.advice;
+package org.kkumulkkum.server.common.advice;
 
-import org.kkumulkkum.server.dto.common.ResponseDto;
-import org.kkumulkkum.server.exception.code.DefaultErrorCode;
+import org.kkumulkkum.server.api.common.dto.ResponseDto;
+import org.kkumulkkum.server.common.exception.code.DefaultErrorCode;
 import org.springframework.core.MethodParameter;
 import org.springframework.http.MediaType;
 import org.springframework.http.converter.HttpMessageConverter;
@@ -11,6 +11,7 @@
 import org.springframework.web.bind.annotation.RestControllerAdvice;
 import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;
 
+// TODO: 구현을 숨기고 이해를 어렵게한다는 이유로 곧 disable될 예정
 @RestControllerAdvice(basePackages = "org.kkumulkkum.server")
 public class ResponseDtoAdvice implements ResponseBodyAdvice<Object> {
 
diff --git a/src/main/java/org/kkumulkkum/server/annotation/IsMemberByMeetingId.java b/src/main/java/org/kkumulkkum/server/common/auth/annotation/IsMemberByMeetingId.java
similarity index 84%
rename from src/main/java/org/kkumulkkum/server/annotation/IsMemberByMeetingId.java
rename to src/main/java/org/kkumulkkum/server/common/auth/annotation/IsMemberByMeetingId.java
index 0fd8bf4..ca10021 100644
--- a/src/main/java/org/kkumulkkum/server/annotation/IsMemberByMeetingId.java
+++ b/src/main/java/org/kkumulkkum/server/common/auth/annotation/IsMemberByMeetingId.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.annotation;
+package org.kkumulkkum.server.common.auth.annotation;
 
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
diff --git a/src/main/java/org/kkumulkkum/server/annotation/IsMemberByPromiseId.java b/src/main/java/org/kkumulkkum/server/common/auth/annotation/IsMemberByPromiseId.java
similarity index 84%
rename from src/main/java/org/kkumulkkum/server/annotation/IsMemberByPromiseId.java
rename to src/main/java/org/kkumulkkum/server/common/auth/annotation/IsMemberByPromiseId.java
index 3201cb2..5b8e7b1 100644
--- a/src/main/java/org/kkumulkkum/server/annotation/IsMemberByPromiseId.java
+++ b/src/main/java/org/kkumulkkum/server/common/auth/annotation/IsMemberByPromiseId.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.annotation;
+package org.kkumulkkum.server.common.auth.annotation;
 
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
diff --git a/src/main/java/org/kkumulkkum/server/annotation/IsParticipant.java b/src/main/java/org/kkumulkkum/server/common/auth/annotation/IsParticipant.java
similarity index 84%
rename from src/main/java/org/kkumulkkum/server/annotation/IsParticipant.java
rename to src/main/java/org/kkumulkkum/server/common/auth/annotation/IsParticipant.java
index 7fb64cd..7bade6b 100644
--- a/src/main/java/org/kkumulkkum/server/annotation/IsParticipant.java
+++ b/src/main/java/org/kkumulkkum/server/common/auth/annotation/IsParticipant.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.annotation;
+package org.kkumulkkum.server.common.auth.annotation;
 
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
diff --git a/src/main/java/org/kkumulkkum/server/annotation/UserId.java b/src/main/java/org/kkumulkkum/server/common/auth/annotation/UserId.java
similarity index 66%
rename from src/main/java/org/kkumulkkum/server/annotation/UserId.java
rename to src/main/java/org/kkumulkkum/server/common/auth/annotation/UserId.java
index 6956cfe..5511b8f 100644
--- a/src/main/java/org/kkumulkkum/server/annotation/UserId.java
+++ b/src/main/java/org/kkumulkkum/server/common/auth/annotation/UserId.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.annotation;
+package org.kkumulkkum.server.common.auth.annotation;
 
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
 
@@ -9,6 +9,6 @@
 
 @Target(ElementType.PARAMETER)
 @Retention(RetentionPolicy.RUNTIME)
-@AuthenticationPrincipal(expression="T(org.kkumulkkum.server.auth.jwt.JwtTokenProvider).checkPrincipal(#this)")
+@AuthenticationPrincipal(expression="T(org.kkumulkkum.server.common.auth.jwt.JwtTokenProvider).checkPrincipal(#this)")
 public @interface UserId {
 }
diff --git a/src/main/java/org/kkumulkkum/server/aspect/MemberCheckByMeetingIdAspect.java b/src/main/java/org/kkumulkkum/server/common/auth/aspect/MemberCheckByMeetingIdAspect.java
similarity index 74%
rename from src/main/java/org/kkumulkkum/server/aspect/MemberCheckByMeetingIdAspect.java
rename to src/main/java/org/kkumulkkum/server/common/auth/aspect/MemberCheckByMeetingIdAspect.java
index 0c6d508..1374a8c 100644
--- a/src/main/java/org/kkumulkkum/server/aspect/MemberCheckByMeetingIdAspect.java
+++ b/src/main/java/org/kkumulkkum/server/common/auth/aspect/MemberCheckByMeetingIdAspect.java
@@ -1,13 +1,13 @@
-package org.kkumulkkum.server.aspect;
+package org.kkumulkkum.server.common.auth.aspect;
 
 import lombok.RequiredArgsConstructor;
 import org.aspectj.lang.JoinPoint;
 import org.aspectj.lang.annotation.Aspect;
 import org.aspectj.lang.annotation.Before;
-import org.kkumulkkum.server.annotation.IsMemberByMeetingId;
-import org.kkumulkkum.server.exception.MemberException;
-import org.kkumulkkum.server.exception.code.MemberErrorCode;
-import org.kkumulkkum.server.service.member.MemberRetreiver;
+import org.kkumulkkum.server.common.auth.annotation.IsMemberByMeetingId;
+import org.kkumulkkum.server.common.exception.MemberException;
+import org.kkumulkkum.server.common.exception.code.MemberErrorCode;
+import org.kkumulkkum.server.domain.member.manager.MemberRetreiver;
 import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.stereotype.Component;
 
diff --git a/src/main/java/org/kkumulkkum/server/aspect/MemberCheckByPromiseIdAspect.java b/src/main/java/org/kkumulkkum/server/common/auth/aspect/MemberCheckByPromiseIdAspect.java
similarity index 74%
rename from src/main/java/org/kkumulkkum/server/aspect/MemberCheckByPromiseIdAspect.java
rename to src/main/java/org/kkumulkkum/server/common/auth/aspect/MemberCheckByPromiseIdAspect.java
index 6caf630..befafa7 100644
--- a/src/main/java/org/kkumulkkum/server/aspect/MemberCheckByPromiseIdAspect.java
+++ b/src/main/java/org/kkumulkkum/server/common/auth/aspect/MemberCheckByPromiseIdAspect.java
@@ -1,13 +1,13 @@
-package org.kkumulkkum.server.aspect;
+package org.kkumulkkum.server.common.auth.aspect;
 
 import lombok.RequiredArgsConstructor;
 import org.aspectj.lang.JoinPoint;
 import org.aspectj.lang.annotation.Aspect;
 import org.aspectj.lang.annotation.Before;
-import org.kkumulkkum.server.annotation.IsMemberByPromiseId;
-import org.kkumulkkum.server.exception.MemberException;
-import org.kkumulkkum.server.exception.code.MemberErrorCode;
-import org.kkumulkkum.server.service.member.MemberRetreiver;
+import org.kkumulkkum.server.common.auth.annotation.IsMemberByPromiseId;
+import org.kkumulkkum.server.common.exception.MemberException;
+import org.kkumulkkum.server.common.exception.code.MemberErrorCode;
+import org.kkumulkkum.server.domain.member.manager.MemberRetreiver;
 import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.stereotype.Component;
 
diff --git a/src/main/java/org/kkumulkkum/server/aspect/ParticipantCheckAspect.java b/src/main/java/org/kkumulkkum/server/common/auth/aspect/ParticipantCheckAspect.java
similarity index 74%
rename from src/main/java/org/kkumulkkum/server/aspect/ParticipantCheckAspect.java
rename to src/main/java/org/kkumulkkum/server/common/auth/aspect/ParticipantCheckAspect.java
index 552f76e..3e71e45 100644
--- a/src/main/java/org/kkumulkkum/server/aspect/ParticipantCheckAspect.java
+++ b/src/main/java/org/kkumulkkum/server/common/auth/aspect/ParticipantCheckAspect.java
@@ -1,13 +1,13 @@
-package org.kkumulkkum.server.aspect;
+package org.kkumulkkum.server.common.auth.aspect;
 
 import lombok.RequiredArgsConstructor;
 import org.aspectj.lang.JoinPoint;
 import org.aspectj.lang.annotation.Aspect;
 import org.aspectj.lang.annotation.Before;
-import org.kkumulkkum.server.annotation.IsParticipant;
-import org.kkumulkkum.server.exception.ParticipantException;
-import org.kkumulkkum.server.exception.code.ParticipantErrorCode;
-import org.kkumulkkum.server.service.participant.ParticipantRetriever;
+import org.kkumulkkum.server.common.auth.annotation.IsParticipant;
+import org.kkumulkkum.server.common.exception.ParticipantException;
+import org.kkumulkkum.server.common.exception.code.ParticipantErrorCode;
+import org.kkumulkkum.server.domain.participant.manager.ParticipantRetriever;
 import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.stereotype.Component;
 
diff --git a/src/main/java/org/kkumulkkum/server/auth/UserAuthentication.java b/src/main/java/org/kkumulkkum/server/common/auth/authentication/UserAuthentication.java
similarity index 91%
rename from src/main/java/org/kkumulkkum/server/auth/UserAuthentication.java
rename to src/main/java/org/kkumulkkum/server/common/auth/authentication/UserAuthentication.java
index 8acb178..579b1cc 100644
--- a/src/main/java/org/kkumulkkum/server/auth/UserAuthentication.java
+++ b/src/main/java/org/kkumulkkum/server/common/auth/authentication/UserAuthentication.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.auth;
+package org.kkumulkkum.server.common.auth.authentication;
 
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
 import org.springframework.security.core.GrantedAuthority;
diff --git a/src/main/java/org/kkumulkkum/server/config/SecurityConfig.java b/src/main/java/org/kkumulkkum/server/common/auth/config/SecurityConfig.java
similarity index 86%
rename from src/main/java/org/kkumulkkum/server/config/SecurityConfig.java
rename to src/main/java/org/kkumulkkum/server/common/auth/config/SecurityConfig.java
index 19ef146..3001800 100644
--- a/src/main/java/org/kkumulkkum/server/config/SecurityConfig.java
+++ b/src/main/java/org/kkumulkkum/server/common/auth/config/SecurityConfig.java
@@ -1,10 +1,10 @@
-package org.kkumulkkum.server.config;
+package org.kkumulkkum.server.common.auth.config;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.auth.CustomAccessDeniedHandler;
-import org.kkumulkkum.server.auth.CustomJwtAuthenticationEntryPoint;
-import org.kkumulkkum.server.auth.JwtAuthenticationFilter;
-import org.kkumulkkum.server.auth.JwtExceptionFilter;
+import org.kkumulkkum.server.common.auth.handler.CustomAccessDeniedHandler;
+import org.kkumulkkum.server.common.auth.handler.CustomJwtAuthenticationEntryPoint;
+import org.kkumulkkum.server.common.auth.filter.JwtAuthenticationFilter;
+import org.kkumulkkum.server.common.auth.filter.JwtExceptionFilter;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
diff --git a/src/main/java/org/kkumulkkum/server/constant/AuthConstant.java b/src/main/java/org/kkumulkkum/server/common/auth/constant/AuthConstant.java
similarity index 92%
rename from src/main/java/org/kkumulkkum/server/constant/AuthConstant.java
rename to src/main/java/org/kkumulkkum/server/common/auth/constant/AuthConstant.java
index 2fb76b8..9517d3d 100644
--- a/src/main/java/org/kkumulkkum/server/constant/AuthConstant.java
+++ b/src/main/java/org/kkumulkkum/server/common/auth/constant/AuthConstant.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.constant;
+package org.kkumulkkum.server.common.auth.constant;
 
 import lombok.AccessLevel;
 import lombok.NoArgsConstructor;
diff --git a/src/main/java/org/kkumulkkum/server/auth/JwtAuthenticationFilter.java b/src/main/java/org/kkumulkkum/server/common/auth/filter/JwtAuthenticationFilter.java
similarity index 86%
rename from src/main/java/org/kkumulkkum/server/auth/JwtAuthenticationFilter.java
rename to src/main/java/org/kkumulkkum/server/common/auth/filter/JwtAuthenticationFilter.java
index c859d82..6accedf 100644
--- a/src/main/java/org/kkumulkkum/server/auth/JwtAuthenticationFilter.java
+++ b/src/main/java/org/kkumulkkum/server/common/auth/filter/JwtAuthenticationFilter.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.auth;
+package org.kkumulkkum.server.common.auth.filter;
 
 import jakarta.servlet.FilterChain;
 import jakarta.servlet.ServletException;
@@ -6,9 +6,10 @@
 import jakarta.servlet.http.HttpServletResponse;
 import lombok.NonNull;
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.auth.jwt.JwtTokenProvider;
-import org.kkumulkkum.server.auth.jwt.JwtTokenValidator;
-import org.kkumulkkum.server.constant.AuthConstant;
+import org.kkumulkkum.server.common.auth.authentication.UserAuthentication;
+import org.kkumulkkum.server.common.auth.jwt.JwtTokenProvider;
+import org.kkumulkkum.server.common.auth.jwt.JwtTokenValidator;
+import org.kkumulkkum.server.common.auth.constant.AuthConstant;
 import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
 import org.springframework.stereotype.Component;
diff --git a/src/main/java/org/kkumulkkum/server/auth/JwtExceptionFilter.java b/src/main/java/org/kkumulkkum/server/common/auth/filter/JwtExceptionFilter.java
similarity index 86%
rename from src/main/java/org/kkumulkkum/server/auth/JwtExceptionFilter.java
rename to src/main/java/org/kkumulkkum/server/common/auth/filter/JwtExceptionFilter.java
index acd7d08..0602b0a 100644
--- a/src/main/java/org/kkumulkkum/server/auth/JwtExceptionFilter.java
+++ b/src/main/java/org/kkumulkkum/server/common/auth/filter/JwtExceptionFilter.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.auth;
+package org.kkumulkkum.server.common.auth.filter;
 
 import io.jsonwebtoken.JwtException;
 import jakarta.servlet.FilterChain;
@@ -7,9 +7,9 @@
 import jakarta.servlet.http.HttpServletResponse;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.kkumulkkum.server.exception.AuthException;
-import org.kkumulkkum.server.exception.code.AuthErrorCode;
-import org.kkumulkkum.server.exception.code.BusinessErrorCode;
+import org.kkumulkkum.server.common.exception.AuthException;
+import org.kkumulkkum.server.common.exception.code.AuthErrorCode;
+import org.kkumulkkum.server.common.exception.code.BusinessErrorCode;
 import org.springframework.stereotype.Component;
 import org.springframework.web.filter.OncePerRequestFilter;
 
diff --git a/src/main/java/org/kkumulkkum/server/auth/CustomAccessDeniedHandler.java b/src/main/java/org/kkumulkkum/server/common/auth/handler/CustomAccessDeniedHandler.java
similarity index 94%
rename from src/main/java/org/kkumulkkum/server/auth/CustomAccessDeniedHandler.java
rename to src/main/java/org/kkumulkkum/server/common/auth/handler/CustomAccessDeniedHandler.java
index 2240569..824a27f 100644
--- a/src/main/java/org/kkumulkkum/server/auth/CustomAccessDeniedHandler.java
+++ b/src/main/java/org/kkumulkkum/server/common/auth/handler/CustomAccessDeniedHandler.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.auth;
+package org.kkumulkkum.server.common.auth.handler;
 
 import jakarta.servlet.ServletException;
 import jakarta.servlet.http.HttpServletRequest;
diff --git a/src/main/java/org/kkumulkkum/server/auth/CustomJwtAuthenticationEntryPoint.java b/src/main/java/org/kkumulkkum/server/common/auth/handler/CustomJwtAuthenticationEntryPoint.java
similarity index 86%
rename from src/main/java/org/kkumulkkum/server/auth/CustomJwtAuthenticationEntryPoint.java
rename to src/main/java/org/kkumulkkum/server/common/auth/handler/CustomJwtAuthenticationEntryPoint.java
index 1c99b66..dc73549 100644
--- a/src/main/java/org/kkumulkkum/server/auth/CustomJwtAuthenticationEntryPoint.java
+++ b/src/main/java/org/kkumulkkum/server/common/auth/handler/CustomJwtAuthenticationEntryPoint.java
@@ -1,13 +1,13 @@
-package org.kkumulkkum.server.auth;
+package org.kkumulkkum.server.common.auth.handler;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.constant.AuthConstant;
-import org.kkumulkkum.server.dto.common.ResponseDto;
-import org.kkumulkkum.server.exception.code.AuthErrorCode;
-import org.kkumulkkum.server.exception.code.DefaultErrorCode;
+import org.kkumulkkum.server.common.auth.constant.AuthConstant;
+import org.kkumulkkum.server.api.common.dto.ResponseDto;
+import org.kkumulkkum.server.common.exception.code.AuthErrorCode;
+import org.kkumulkkum.server.common.exception.code.DefaultErrorCode;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.MediaType;
 import org.springframework.security.core.AuthenticationException;
diff --git a/src/main/java/org/kkumulkkum/server/auth/jwt/JwtTokenProvider.java b/src/main/java/org/kkumulkkum/server/common/auth/jwt/JwtTokenProvider.java
similarity index 89%
rename from src/main/java/org/kkumulkkum/server/auth/jwt/JwtTokenProvider.java
rename to src/main/java/org/kkumulkkum/server/common/auth/jwt/JwtTokenProvider.java
index a568346..9b2e323 100644
--- a/src/main/java/org/kkumulkkum/server/auth/jwt/JwtTokenProvider.java
+++ b/src/main/java/org/kkumulkkum/server/common/auth/jwt/JwtTokenProvider.java
@@ -1,13 +1,13 @@
-package org.kkumulkkum.server.auth.jwt;
+package org.kkumulkkum.server.common.auth.jwt;
 
 import io.jsonwebtoken.Claims;
 import io.jsonwebtoken.Header;
 import io.jsonwebtoken.Jwts;
 import io.jsonwebtoken.security.Keys;
-import org.kkumulkkum.server.constant.AuthConstant;
-import org.kkumulkkum.server.dto.auth.response.JwtTokenDto;
-import org.kkumulkkum.server.exception.AuthException;
-import org.kkumulkkum.server.exception.code.AuthErrorCode;
+import org.kkumulkkum.server.common.auth.constant.AuthConstant;
+import org.kkumulkkum.server.api.auth.dto.response.JwtTokenDto;
+import org.kkumulkkum.server.common.exception.AuthException;
+import org.kkumulkkum.server.common.exception.code.AuthErrorCode;
 import org.springframework.beans.factory.InitializingBean;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;
diff --git a/src/main/java/org/kkumulkkum/server/auth/jwt/JwtTokenValidator.java b/src/main/java/org/kkumulkkum/server/common/auth/jwt/JwtTokenValidator.java
similarity index 87%
rename from src/main/java/org/kkumulkkum/server/auth/jwt/JwtTokenValidator.java
rename to src/main/java/org/kkumulkkum/server/common/auth/jwt/JwtTokenValidator.java
index 9bb8d27..dc4f5bd 100644
--- a/src/main/java/org/kkumulkkum/server/auth/jwt/JwtTokenValidator.java
+++ b/src/main/java/org/kkumulkkum/server/common/auth/jwt/JwtTokenValidator.java
@@ -1,11 +1,11 @@
-package org.kkumulkkum.server.auth.jwt;
+package org.kkumulkkum.server.common.auth.jwt;
 
 import io.jsonwebtoken.ExpiredJwtException;
 import io.jsonwebtoken.MalformedJwtException;
 import io.jsonwebtoken.UnsupportedJwtException;
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.exception.AuthException;
-import org.kkumulkkum.server.exception.code.AuthErrorCode;
+import org.kkumulkkum.server.common.exception.AuthException;
+import org.kkumulkkum.server.common.exception.code.AuthErrorCode;
 import org.springframework.stereotype.Component;
 
 @Component
diff --git a/src/main/java/org/kkumulkkum/server/config/AsyncConfig.java b/src/main/java/org/kkumulkkum/server/common/config/AsyncConfig.java
similarity index 94%
rename from src/main/java/org/kkumulkkum/server/config/AsyncConfig.java
rename to src/main/java/org/kkumulkkum/server/common/config/AsyncConfig.java
index a3b18b2..fcfba4c 100644
--- a/src/main/java/org/kkumulkkum/server/config/AsyncConfig.java
+++ b/src/main/java/org/kkumulkkum/server/common/config/AsyncConfig.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.config;
+package org.kkumulkkum.server.common.config;
 
 import org.springframework.context.annotation.Configuration;
 import org.springframework.scheduling.annotation.AsyncConfigurer;
diff --git a/src/main/java/org/kkumulkkum/server/config/JpaAuditingConfig.java b/src/main/java/org/kkumulkkum/server/common/config/JpaAuditingConfig.java
similarity index 82%
rename from src/main/java/org/kkumulkkum/server/config/JpaAuditingConfig.java
rename to src/main/java/org/kkumulkkum/server/common/config/JpaAuditingConfig.java
index 0a9e1b8..0a5fe13 100644
--- a/src/main/java/org/kkumulkkum/server/config/JpaAuditingConfig.java
+++ b/src/main/java/org/kkumulkkum/server/common/config/JpaAuditingConfig.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.config;
+package org.kkumulkkum.server.common.config;
 
 import org.springframework.context.annotation.Configuration;
 import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
diff --git a/src/main/java/org/kkumulkkum/server/exception/AuthException.java b/src/main/java/org/kkumulkkum/server/common/exception/AuthException.java
similarity index 63%
rename from src/main/java/org/kkumulkkum/server/exception/AuthException.java
rename to src/main/java/org/kkumulkkum/server/common/exception/AuthException.java
index c8d65cb..3b12eaf 100644
--- a/src/main/java/org/kkumulkkum/server/exception/AuthException.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/AuthException.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.exception;
+package org.kkumulkkum.server.common.exception;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.exception.code.AuthErrorCode;
+import org.kkumulkkum.server.common.exception.code.AuthErrorCode;
 
 @Getter
 @RequiredArgsConstructor
diff --git a/src/main/java/org/kkumulkkum/server/exception/AwsException.java b/src/main/java/org/kkumulkkum/server/common/exception/AwsException.java
similarity index 63%
rename from src/main/java/org/kkumulkkum/server/exception/AwsException.java
rename to src/main/java/org/kkumulkkum/server/common/exception/AwsException.java
index 1db508e..9d1ed84 100644
--- a/src/main/java/org/kkumulkkum/server/exception/AwsException.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/AwsException.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.exception;
+package org.kkumulkkum.server.common.exception;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.exception.code.AwsErrorCode;
+import org.kkumulkkum.server.common.exception.code.AwsErrorCode;
 
 @Getter
 @RequiredArgsConstructor
diff --git a/src/main/java/org/kkumulkkum/server/exception/BusinessException.java b/src/main/java/org/kkumulkkum/server/common/exception/BusinessException.java
similarity index 63%
rename from src/main/java/org/kkumulkkum/server/exception/BusinessException.java
rename to src/main/java/org/kkumulkkum/server/common/exception/BusinessException.java
index 245fcf2..24f611c 100644
--- a/src/main/java/org/kkumulkkum/server/exception/BusinessException.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/BusinessException.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.exception;
+package org.kkumulkkum.server.common.exception;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.exception.code.BusinessErrorCode;
+import org.kkumulkkum.server.common.exception.code.BusinessErrorCode;
 
 @Getter
 @RequiredArgsConstructor
diff --git a/src/main/java/org/kkumulkkum/server/exception/FirebaseException.java b/src/main/java/org/kkumulkkum/server/common/exception/FirebaseException.java
similarity index 63%
rename from src/main/java/org/kkumulkkum/server/exception/FirebaseException.java
rename to src/main/java/org/kkumulkkum/server/common/exception/FirebaseException.java
index b8a4791..d0e68b1 100644
--- a/src/main/java/org/kkumulkkum/server/exception/FirebaseException.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/FirebaseException.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.exception;
+package org.kkumulkkum.server.common.exception;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.exception.code.FirebaseErrorCode;
+import org.kkumulkkum.server.common.exception.code.FirebaseErrorCode;
 
 @Getter
 @RequiredArgsConstructor
diff --git a/src/main/java/org/kkumulkkum/server/exception/MeetingException.java b/src/main/java/org/kkumulkkum/server/common/exception/MeetingException.java
similarity index 63%
rename from src/main/java/org/kkumulkkum/server/exception/MeetingException.java
rename to src/main/java/org/kkumulkkum/server/common/exception/MeetingException.java
index 1ae20f4..b7691fd 100644
--- a/src/main/java/org/kkumulkkum/server/exception/MeetingException.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/MeetingException.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.exception;
+package org.kkumulkkum.server.common.exception;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.exception.code.MeetingErrorCode;
+import org.kkumulkkum.server.common.exception.code.MeetingErrorCode;
 
 @Getter
 @RequiredArgsConstructor
diff --git a/src/main/java/org/kkumulkkum/server/exception/MemberException.java b/src/main/java/org/kkumulkkum/server/common/exception/MemberException.java
similarity index 63%
rename from src/main/java/org/kkumulkkum/server/exception/MemberException.java
rename to src/main/java/org/kkumulkkum/server/common/exception/MemberException.java
index d9d57fb..6464810 100644
--- a/src/main/java/org/kkumulkkum/server/exception/MemberException.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/MemberException.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.exception;
+package org.kkumulkkum.server.common.exception;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.exception.code.MemberErrorCode;
+import org.kkumulkkum.server.common.exception.code.MemberErrorCode;
 
 @Getter
 @RequiredArgsConstructor
diff --git a/src/main/java/org/kkumulkkum/server/exception/OpenApiException.java b/src/main/java/org/kkumulkkum/server/common/exception/OpenApiException.java
similarity index 63%
rename from src/main/java/org/kkumulkkum/server/exception/OpenApiException.java
rename to src/main/java/org/kkumulkkum/server/common/exception/OpenApiException.java
index 532c82c..63a17fc 100644
--- a/src/main/java/org/kkumulkkum/server/exception/OpenApiException.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/OpenApiException.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.exception;
+package org.kkumulkkum.server.common.exception;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.exception.code.OpenApiErrorCode;
+import org.kkumulkkum.server.common.exception.code.OpenApiErrorCode;
 
 @Getter
 @RequiredArgsConstructor
diff --git a/src/main/java/org/kkumulkkum/server/exception/ParticipantException.java b/src/main/java/org/kkumulkkum/server/common/exception/ParticipantException.java
similarity index 63%
rename from src/main/java/org/kkumulkkum/server/exception/ParticipantException.java
rename to src/main/java/org/kkumulkkum/server/common/exception/ParticipantException.java
index 541da77..9f86e62 100644
--- a/src/main/java/org/kkumulkkum/server/exception/ParticipantException.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/ParticipantException.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.exception;
+package org.kkumulkkum.server.common.exception;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.exception.code.ParticipantErrorCode;
+import org.kkumulkkum.server.common.exception.code.ParticipantErrorCode;
 
 @Getter
 @RequiredArgsConstructor
diff --git a/src/main/java/org/kkumulkkum/server/exception/PromiseException.java b/src/main/java/org/kkumulkkum/server/common/exception/PromiseException.java
similarity index 63%
rename from src/main/java/org/kkumulkkum/server/exception/PromiseException.java
rename to src/main/java/org/kkumulkkum/server/common/exception/PromiseException.java
index 5a89b5a..d1dd784 100644
--- a/src/main/java/org/kkumulkkum/server/exception/PromiseException.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/PromiseException.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.exception;
+package org.kkumulkkum.server.common.exception;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.exception.code.PromiseErrorCode;
+import org.kkumulkkum.server.common.exception.code.PromiseErrorCode;
 
 @Getter
 @RequiredArgsConstructor
diff --git a/src/main/java/org/kkumulkkum/server/exception/UserException.java b/src/main/java/org/kkumulkkum/server/common/exception/UserException.java
similarity index 63%
rename from src/main/java/org/kkumulkkum/server/exception/UserException.java
rename to src/main/java/org/kkumulkkum/server/common/exception/UserException.java
index 184098c..baa2a9c 100644
--- a/src/main/java/org/kkumulkkum/server/exception/UserException.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/UserException.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.exception;
+package org.kkumulkkum.server.common.exception;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.exception.code.UserErrorCode;
+import org.kkumulkkum.server.common.exception.code.UserErrorCode;
 
 @Getter
 @RequiredArgsConstructor
diff --git a/src/main/java/org/kkumulkkum/server/advice/GlobalExceptionHandler.java b/src/main/java/org/kkumulkkum/server/common/exception/advice/GlobalExceptionHandler.java
similarity index 98%
rename from src/main/java/org/kkumulkkum/server/advice/GlobalExceptionHandler.java
rename to src/main/java/org/kkumulkkum/server/common/exception/advice/GlobalExceptionHandler.java
index 15329b2..d575d65 100644
--- a/src/main/java/org/kkumulkkum/server/advice/GlobalExceptionHandler.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/advice/GlobalExceptionHandler.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.advice;
+package org.kkumulkkum.server.common.exception.advice;
 
 import lombok.extern.slf4j.Slf4j;
-import org.kkumulkkum.server.exception.*;
-import org.kkumulkkum.server.exception.code.*;
+import org.kkumulkkum.server.common.exception.*;
+import org.kkumulkkum.server.common.exception.code.*;
 import org.springframework.http.ResponseEntity;
 import org.springframework.http.converter.HttpMessageNotReadableException;
 import org.springframework.web.HttpRequestMethodNotSupportedException;
diff --git a/src/main/java/org/kkumulkkum/server/exception/code/AuthErrorCode.java b/src/main/java/org/kkumulkkum/server/common/exception/code/AuthErrorCode.java
similarity index 97%
rename from src/main/java/org/kkumulkkum/server/exception/code/AuthErrorCode.java
rename to src/main/java/org/kkumulkkum/server/common/exception/code/AuthErrorCode.java
index 5ac5cba..c534e7e 100644
--- a/src/main/java/org/kkumulkkum/server/exception/code/AuthErrorCode.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/code/AuthErrorCode.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.exception.code;
+package org.kkumulkkum.server.common.exception.code;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;
diff --git a/src/main/java/org/kkumulkkum/server/exception/code/AwsErrorCode.java b/src/main/java/org/kkumulkkum/server/common/exception/code/AwsErrorCode.java
similarity index 92%
rename from src/main/java/org/kkumulkkum/server/exception/code/AwsErrorCode.java
rename to src/main/java/org/kkumulkkum/server/common/exception/code/AwsErrorCode.java
index 517cfe8..99cfc9b 100644
--- a/src/main/java/org/kkumulkkum/server/exception/code/AwsErrorCode.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/code/AwsErrorCode.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.exception.code;
+package org.kkumulkkum.server.common.exception.code;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;
diff --git a/src/main/java/org/kkumulkkum/server/exception/code/BusinessErrorCode.java b/src/main/java/org/kkumulkkum/server/common/exception/code/BusinessErrorCode.java
similarity index 96%
rename from src/main/java/org/kkumulkkum/server/exception/code/BusinessErrorCode.java
rename to src/main/java/org/kkumulkkum/server/common/exception/code/BusinessErrorCode.java
index 1b1a16c..c1dc5e0 100644
--- a/src/main/java/org/kkumulkkum/server/exception/code/BusinessErrorCode.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/code/BusinessErrorCode.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.exception.code;
+package org.kkumulkkum.server.common.exception.code;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;
diff --git a/src/main/java/org/kkumulkkum/server/exception/code/DefaultErrorCode.java b/src/main/java/org/kkumulkkum/server/common/exception/code/DefaultErrorCode.java
similarity index 75%
rename from src/main/java/org/kkumulkkum/server/exception/code/DefaultErrorCode.java
rename to src/main/java/org/kkumulkkum/server/common/exception/code/DefaultErrorCode.java
index e43eaeb..90f2d5d 100644
--- a/src/main/java/org/kkumulkkum/server/exception/code/DefaultErrorCode.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/code/DefaultErrorCode.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.exception.code;
+package org.kkumulkkum.server.common.exception.code;
 
 import org.springframework.http.HttpStatus;
 
diff --git a/src/main/java/org/kkumulkkum/server/exception/code/FirebaseErrorCode.java b/src/main/java/org/kkumulkkum/server/common/exception/code/FirebaseErrorCode.java
similarity index 90%
rename from src/main/java/org/kkumulkkum/server/exception/code/FirebaseErrorCode.java
rename to src/main/java/org/kkumulkkum/server/common/exception/code/FirebaseErrorCode.java
index 3a13bdf..03dd3f9 100644
--- a/src/main/java/org/kkumulkkum/server/exception/code/FirebaseErrorCode.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/code/FirebaseErrorCode.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.exception.code;
+package org.kkumulkkum.server.common.exception.code;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;
diff --git a/src/main/java/org/kkumulkkum/server/exception/code/MeetingErrorCode.java b/src/main/java/org/kkumulkkum/server/common/exception/code/MeetingErrorCode.java
similarity index 92%
rename from src/main/java/org/kkumulkkum/server/exception/code/MeetingErrorCode.java
rename to src/main/java/org/kkumulkkum/server/common/exception/code/MeetingErrorCode.java
index a554e99..363bdb1 100644
--- a/src/main/java/org/kkumulkkum/server/exception/code/MeetingErrorCode.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/code/MeetingErrorCode.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.exception.code;
+package org.kkumulkkum.server.common.exception.code;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;
diff --git a/src/main/java/org/kkumulkkum/server/exception/code/MemberErrorCode.java b/src/main/java/org/kkumulkkum/server/common/exception/code/MemberErrorCode.java
similarity index 90%
rename from src/main/java/org/kkumulkkum/server/exception/code/MemberErrorCode.java
rename to src/main/java/org/kkumulkkum/server/common/exception/code/MemberErrorCode.java
index 2ef9cd2..648d2ab 100644
--- a/src/main/java/org/kkumulkkum/server/exception/code/MemberErrorCode.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/code/MemberErrorCode.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.exception.code;
+package org.kkumulkkum.server.common.exception.code;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;
diff --git a/src/main/java/org/kkumulkkum/server/exception/code/OpenApiErrorCode.java b/src/main/java/org/kkumulkkum/server/common/exception/code/OpenApiErrorCode.java
similarity index 91%
rename from src/main/java/org/kkumulkkum/server/exception/code/OpenApiErrorCode.java
rename to src/main/java/org/kkumulkkum/server/common/exception/code/OpenApiErrorCode.java
index 25848c1..9e4abb4 100644
--- a/src/main/java/org/kkumulkkum/server/exception/code/OpenApiErrorCode.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/code/OpenApiErrorCode.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.exception.code;
+package org.kkumulkkum.server.common.exception.code;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;
diff --git a/src/main/java/org/kkumulkkum/server/exception/code/ParticipantErrorCode.java b/src/main/java/org/kkumulkkum/server/common/exception/code/ParticipantErrorCode.java
similarity index 92%
rename from src/main/java/org/kkumulkkum/server/exception/code/ParticipantErrorCode.java
rename to src/main/java/org/kkumulkkum/server/common/exception/code/ParticipantErrorCode.java
index 9e223d6..608dffd 100644
--- a/src/main/java/org/kkumulkkum/server/exception/code/ParticipantErrorCode.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/code/ParticipantErrorCode.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.exception.code;
+package org.kkumulkkum.server.common.exception.code;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;
diff --git a/src/main/java/org/kkumulkkum/server/exception/code/PromiseErrorCode.java b/src/main/java/org/kkumulkkum/server/common/exception/code/PromiseErrorCode.java
similarity index 92%
rename from src/main/java/org/kkumulkkum/server/exception/code/PromiseErrorCode.java
rename to src/main/java/org/kkumulkkum/server/common/exception/code/PromiseErrorCode.java
index 48750ae..aaa783f 100644
--- a/src/main/java/org/kkumulkkum/server/exception/code/PromiseErrorCode.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/code/PromiseErrorCode.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.exception.code;
+package org.kkumulkkum.server.common.exception.code;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;
diff --git a/src/main/java/org/kkumulkkum/server/exception/code/UserErrorCode.java b/src/main/java/org/kkumulkkum/server/common/exception/code/UserErrorCode.java
similarity index 87%
rename from src/main/java/org/kkumulkkum/server/exception/code/UserErrorCode.java
rename to src/main/java/org/kkumulkkum/server/common/exception/code/UserErrorCode.java
index f848831..ae3eb08 100644
--- a/src/main/java/org/kkumulkkum/server/exception/code/UserErrorCode.java
+++ b/src/main/java/org/kkumulkkum/server/common/exception/code/UserErrorCode.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.exception.code;
+package org.kkumulkkum.server.common.exception.code;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;
diff --git a/src/main/java/org/kkumulkkum/server/config/FilterConfig.java b/src/main/java/org/kkumulkkum/server/common/log/config/LogFilterConfig.java
similarity index 79%
rename from src/main/java/org/kkumulkkum/server/config/FilterConfig.java
rename to src/main/java/org/kkumulkkum/server/common/log/config/LogFilterConfig.java
index 5a705c6..b4e8889 100644
--- a/src/main/java/org/kkumulkkum/server/config/FilterConfig.java
+++ b/src/main/java/org/kkumulkkum/server/common/log/config/LogFilterConfig.java
@@ -1,13 +1,13 @@
-package org.kkumulkkum.server.config;
+package org.kkumulkkum.server.common.log.config;
 
-import org.kkumulkkum.server.log.filter.ServletWrappingFilter;
-import org.kkumulkkum.server.log.filter.MDCFilter;
+import org.kkumulkkum.server.common.log.filter.ServletWrappingFilter;
+import org.kkumulkkum.server.common.log.filter.MDCFilter;
 import org.springframework.boot.web.servlet.FilterRegistrationBean;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
 @Configuration
-public class FilterConfig {
+public class LogFilterConfig {
     @Bean
     public FilterRegistrationBean<ServletWrappingFilter> secondFilter() {
         FilterRegistrationBean<ServletWrappingFilter> filterRegistrationBean = new FilterRegistrationBean<>(
diff --git a/src/main/java/org/kkumulkkum/server/log/discord/DiscordAppender.java b/src/main/java/org/kkumulkkum/server/common/log/discord/DiscordAppender.java
similarity index 92%
rename from src/main/java/org/kkumulkkum/server/log/discord/DiscordAppender.java
rename to src/main/java/org/kkumulkkum/server/common/log/discord/DiscordAppender.java
index 109a0e0..f13c4d0 100644
--- a/src/main/java/org/kkumulkkum/server/log/discord/DiscordAppender.java
+++ b/src/main/java/org/kkumulkkum/server/common/log/discord/DiscordAppender.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.log.discord;
+package org.kkumulkkum.server.common.log.discord;
 
 import ch.qos.logback.classic.spi.ILoggingEvent;
 import ch.qos.logback.classic.spi.IThrowableProxy;
@@ -7,11 +7,11 @@
 import io.micrometer.core.instrument.util.StringEscapeUtils;
 import lombok.Setter;
 import lombok.extern.slf4j.Slf4j;
-import org.kkumulkkum.server.exception.BusinessException;
-import org.kkumulkkum.server.exception.code.BusinessErrorCode;
-import org.kkumulkkum.server.log.model.EmbedObject;
-import org.kkumulkkum.server.log.util.MDCUtil;
-import org.kkumulkkum.server.log.util.StringUtil;
+import org.kkumulkkum.server.common.exception.BusinessException;
+import org.kkumulkkum.server.common.exception.code.BusinessErrorCode;
+import org.kkumulkkum.server.common.log.model.EmbedObject;
+import org.kkumulkkum.server.common.log.util.MDCUtil;
+import org.kkumulkkum.server.common.log.util.StringUtil;
 
 import java.awt.*;
 import java.io.IOException;
diff --git a/src/main/java/org/kkumulkkum/server/log/discord/DiscordWebHook.java b/src/main/java/org/kkumulkkum/server/common/log/discord/DiscordWebHook.java
similarity index 93%
rename from src/main/java/org/kkumulkkum/server/log/discord/DiscordWebHook.java
rename to src/main/java/org/kkumulkkum/server/common/log/discord/DiscordWebHook.java
index 2de5e2a..751e1f8 100644
--- a/src/main/java/org/kkumulkkum/server/log/discord/DiscordWebHook.java
+++ b/src/main/java/org/kkumulkkum/server/common/log/discord/DiscordWebHook.java
@@ -1,10 +1,10 @@
-package org.kkumulkkum.server.log.discord;
+package org.kkumulkkum.server.common.log.discord;
 
-import org.kkumulkkum.server.exception.BusinessException;
-import org.kkumulkkum.server.exception.code.BusinessErrorCode;
-import org.kkumulkkum.server.log.model.*;
-import org.kkumulkkum.server.log.model.Image;
-import org.kkumulkkum.server.log.util.ApiCallUtil;
+import org.kkumulkkum.server.common.exception.BusinessException;
+import org.kkumulkkum.server.common.exception.code.BusinessErrorCode;
+import org.kkumulkkum.server.common.log.model.*;
+import org.kkumulkkum.server.common.log.model.Image;
+import org.kkumulkkum.server.common.log.util.ApiCallUtil;
 
 import java.awt.*;
 import java.io.IOException;
diff --git a/src/main/java/org/kkumulkkum/server/log/filter/MDCFilter.java b/src/main/java/org/kkumulkkum/server/common/log/filter/MDCFilter.java
similarity index 91%
rename from src/main/java/org/kkumulkkum/server/log/filter/MDCFilter.java
rename to src/main/java/org/kkumulkkum/server/common/log/filter/MDCFilter.java
index fa0e029..fce0ba0 100644
--- a/src/main/java/org/kkumulkkum/server/log/filter/MDCFilter.java
+++ b/src/main/java/org/kkumulkkum/server/common/log/filter/MDCFilter.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.log.filter;
+package org.kkumulkkum.server.common.log.filter;
 
 import jakarta.servlet.FilterChain;
 import jakarta.servlet.ServletException;
@@ -6,8 +6,8 @@
 import jakarta.servlet.http.HttpServletResponse;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.kkumulkkum.server.log.util.HttpRequestUtil;
-import org.kkumulkkum.server.log.util.MDCUtil;
+import org.kkumulkkum.server.common.log.util.MDCUtil;
+import org.kkumulkkum.server.common.log.util.HttpRequestUtil;
 import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.stereotype.Component;
 import org.springframework.web.filter.OncePerRequestFilter;
diff --git a/src/main/java/org/kkumulkkum/server/log/filter/ServletWrappingFilter.java b/src/main/java/org/kkumulkkum/server/common/log/filter/ServletWrappingFilter.java
similarity index 90%
rename from src/main/java/org/kkumulkkum/server/log/filter/ServletWrappingFilter.java
rename to src/main/java/org/kkumulkkum/server/common/log/filter/ServletWrappingFilter.java
index aeac431..3a9b099 100644
--- a/src/main/java/org/kkumulkkum/server/log/filter/ServletWrappingFilter.java
+++ b/src/main/java/org/kkumulkkum/server/common/log/filter/ServletWrappingFilter.java
@@ -1,10 +1,10 @@
-package org.kkumulkkum.server.log.filter;
+package org.kkumulkkum.server.common.log.filter;
 
 import jakarta.servlet.FilterChain;
 import jakarta.servlet.ServletException;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
-import org.kkumulkkum.server.log.wrapper.CachedBodyRequestWrapper;
+import org.kkumulkkum.server.common.log.wrapper.CachedBodyRequestWrapper;
 import org.springframework.stereotype.Component;
 import org.springframework.web.filter.OncePerRequestFilter;
 
diff --git a/src/main/java/org/kkumulkkum/server/log/model/Author.java b/src/main/java/org/kkumulkkum/server/common/log/model/Author.java
similarity index 81%
rename from src/main/java/org/kkumulkkum/server/log/model/Author.java
rename to src/main/java/org/kkumulkkum/server/common/log/model/Author.java
index 8060663..055cd77 100644
--- a/src/main/java/org/kkumulkkum/server/log/model/Author.java
+++ b/src/main/java/org/kkumulkkum/server/common/log/model/Author.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.log.model;
+package org.kkumulkkum.server.common.log.model;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
diff --git a/src/main/java/org/kkumulkkum/server/log/model/EmbedObject.java b/src/main/java/org/kkumulkkum/server/common/log/model/EmbedObject.java
similarity index 93%
rename from src/main/java/org/kkumulkkum/server/log/model/EmbedObject.java
rename to src/main/java/org/kkumulkkum/server/common/log/model/EmbedObject.java
index b6b9b8b..81c5850 100644
--- a/src/main/java/org/kkumulkkum/server/log/model/EmbedObject.java
+++ b/src/main/java/org/kkumulkkum/server/common/log/model/EmbedObject.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.log.model;
+package org.kkumulkkum.server.common.log.model;
 
 import java.awt.*;
 import java.util.ArrayList;
@@ -43,7 +43,7 @@ public class EmbedObject {
     /**
      * <b>Discord Embed Message 사진</b>
      */
-    private Image image;
+    private org.kkumulkkum.server.common.log.model.Image image;
 
     /**
      * <b>Discord Embed Message 작성자</b>
@@ -99,7 +99,7 @@ public EmbedObject setThumbnail(String url) {
         return this;
     }
 
-    public Image getImage() {
+    public org.kkumulkkum.server.common.log.model.Image getImage() {
         return image;
     }
 
diff --git a/src/main/java/org/kkumulkkum/server/log/model/Field.java b/src/main/java/org/kkumulkkum/server/common/log/model/Field.java
similarity index 81%
rename from src/main/java/org/kkumulkkum/server/log/model/Field.java
rename to src/main/java/org/kkumulkkum/server/common/log/model/Field.java
index 7ec22ef..d3945c3 100644
--- a/src/main/java/org/kkumulkkum/server/log/model/Field.java
+++ b/src/main/java/org/kkumulkkum/server/common/log/model/Field.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.log.model;
+package org.kkumulkkum.server.common.log.model;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
diff --git a/src/main/java/org/kkumulkkum/server/log/model/Footer.java b/src/main/java/org/kkumulkkum/server/common/log/model/Footer.java
similarity index 79%
rename from src/main/java/org/kkumulkkum/server/log/model/Footer.java
rename to src/main/java/org/kkumulkkum/server/common/log/model/Footer.java
index d05b2f1..3e95665 100644
--- a/src/main/java/org/kkumulkkum/server/log/model/Footer.java
+++ b/src/main/java/org/kkumulkkum/server/common/log/model/Footer.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.log.model;
+package org.kkumulkkum.server.common.log.model;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
diff --git a/src/main/java/org/kkumulkkum/server/log/model/Image.java b/src/main/java/org/kkumulkkum/server/common/log/model/Image.java
similarity index 75%
rename from src/main/java/org/kkumulkkum/server/log/model/Image.java
rename to src/main/java/org/kkumulkkum/server/common/log/model/Image.java
index 1db0ae7..5189f41 100644
--- a/src/main/java/org/kkumulkkum/server/log/model/Image.java
+++ b/src/main/java/org/kkumulkkum/server/common/log/model/Image.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.log.model;
+package org.kkumulkkum.server.common.log.model;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
diff --git a/src/main/java/org/kkumulkkum/server/log/model/JsonObject.java b/src/main/java/org/kkumulkkum/server/common/log/model/JsonObject.java
similarity index 97%
rename from src/main/java/org/kkumulkkum/server/log/model/JsonObject.java
rename to src/main/java/org/kkumulkkum/server/common/log/model/JsonObject.java
index ac33163..88ab91b 100644
--- a/src/main/java/org/kkumulkkum/server/log/model/JsonObject.java
+++ b/src/main/java/org/kkumulkkum/server/common/log/model/JsonObject.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.log.model;
+package org.kkumulkkum.server.common.log.model;
 
 import java.lang.reflect.Array;
 import java.util.HashMap;
diff --git a/src/main/java/org/kkumulkkum/server/log/model/Thumbnail.java b/src/main/java/org/kkumulkkum/server/common/log/model/Thumbnail.java
similarity index 76%
rename from src/main/java/org/kkumulkkum/server/log/model/Thumbnail.java
rename to src/main/java/org/kkumulkkum/server/common/log/model/Thumbnail.java
index 5788116..24262ea 100644
--- a/src/main/java/org/kkumulkkum/server/log/model/Thumbnail.java
+++ b/src/main/java/org/kkumulkkum/server/common/log/model/Thumbnail.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.log.model;
+package org.kkumulkkum.server.common.log.model;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
diff --git a/src/main/java/org/kkumulkkum/server/log/util/ApiCallUtil.java b/src/main/java/org/kkumulkkum/server/common/log/util/ApiCallUtil.java
similarity index 91%
rename from src/main/java/org/kkumulkkum/server/log/util/ApiCallUtil.java
rename to src/main/java/org/kkumulkkum/server/common/log/util/ApiCallUtil.java
index 0f18c77..8943e77 100644
--- a/src/main/java/org/kkumulkkum/server/log/util/ApiCallUtil.java
+++ b/src/main/java/org/kkumulkkum/server/common/log/util/ApiCallUtil.java
@@ -1,9 +1,9 @@
-package org.kkumulkkum.server.log.util;
+package org.kkumulkkum.server.common.log.util;
 
 import lombok.AccessLevel;
 import lombok.NoArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.kkumulkkum.server.log.model.JsonObject;
+import org.kkumulkkum.server.common.log.model.JsonObject;
 
 import javax.net.ssl.HttpsURLConnection;
 import java.io.IOException;
diff --git a/src/main/java/org/kkumulkkum/server/log/util/HttpRequestUtil.java b/src/main/java/org/kkumulkkum/server/common/log/util/HttpRequestUtil.java
similarity index 96%
rename from src/main/java/org/kkumulkkum/server/log/util/HttpRequestUtil.java
rename to src/main/java/org/kkumulkkum/server/common/log/util/HttpRequestUtil.java
index af6e6cd..23ccb33 100644
--- a/src/main/java/org/kkumulkkum/server/log/util/HttpRequestUtil.java
+++ b/src/main/java/org/kkumulkkum/server/common/log/util/HttpRequestUtil.java
@@ -1,11 +1,11 @@
-package org.kkumulkkum.server.log.util;
+package org.kkumulkkum.server.common.log.util;
 
 import jakarta.servlet.http.Cookie;
 import jakarta.servlet.http.HttpServletRequest;
 import lombok.AccessLevel;
 import lombok.NoArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.kkumulkkum.server.log.wrapper.CachedBodyRequestWrapper;
+import org.kkumulkkum.server.common.log.wrapper.CachedBodyRequestWrapper;
 import org.springframework.web.client.RestTemplate;
 import org.springframework.web.util.WebUtils;
 
diff --git a/src/main/java/org/kkumulkkum/server/log/util/MDCUtil.java b/src/main/java/org/kkumulkkum/server/common/log/util/MDCUtil.java
similarity index 96%
rename from src/main/java/org/kkumulkkum/server/log/util/MDCUtil.java
rename to src/main/java/org/kkumulkkum/server/common/log/util/MDCUtil.java
index 114f986..ac8546e 100644
--- a/src/main/java/org/kkumulkkum/server/log/util/MDCUtil.java
+++ b/src/main/java/org/kkumulkkum/server/common/log/util/MDCUtil.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.log.util;
+package org.kkumulkkum.server.common.log.util;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
diff --git a/src/main/java/org/kkumulkkum/server/log/util/StringUtil.java b/src/main/java/org/kkumulkkum/server/common/log/util/StringUtil.java
similarity index 98%
rename from src/main/java/org/kkumulkkum/server/log/util/StringUtil.java
rename to src/main/java/org/kkumulkkum/server/common/log/util/StringUtil.java
index 80fd85e..e1113bf 100644
--- a/src/main/java/org/kkumulkkum/server/log/util/StringUtil.java
+++ b/src/main/java/org/kkumulkkum/server/common/log/util/StringUtil.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.log.util;
+package org.kkumulkkum.server.common.log.util;
 
 import lombok.AccessLevel;
 import lombok.NoArgsConstructor;
diff --git a/src/main/java/org/kkumulkkum/server/log/wrapper/CachedBodyRequestWrapper.java b/src/main/java/org/kkumulkkum/server/common/log/wrapper/CachedBodyRequestWrapper.java
similarity index 95%
rename from src/main/java/org/kkumulkkum/server/log/wrapper/CachedBodyRequestWrapper.java
rename to src/main/java/org/kkumulkkum/server/common/log/wrapper/CachedBodyRequestWrapper.java
index 12a1f10..cd7d9cd 100644
--- a/src/main/java/org/kkumulkkum/server/log/wrapper/CachedBodyRequestWrapper.java
+++ b/src/main/java/org/kkumulkkum/server/common/log/wrapper/CachedBodyRequestWrapper.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.log.wrapper;
+package org.kkumulkkum.server.common.log.wrapper;
 
 import jakarta.servlet.ServletInputStream;
 import jakarta.servlet.http.HttpServletRequest;
diff --git a/src/main/java/org/kkumulkkum/server/log/wrapper/CachedBodyServletInputStream.java b/src/main/java/org/kkumulkkum/server/common/log/wrapper/CachedBodyServletInputStream.java
similarity index 95%
rename from src/main/java/org/kkumulkkum/server/log/wrapper/CachedBodyServletInputStream.java
rename to src/main/java/org/kkumulkkum/server/common/log/wrapper/CachedBodyServletInputStream.java
index 7b964dc..b76df2a 100644
--- a/src/main/java/org/kkumulkkum/server/log/wrapper/CachedBodyServletInputStream.java
+++ b/src/main/java/org/kkumulkkum/server/common/log/wrapper/CachedBodyServletInputStream.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.log.wrapper;
+package org.kkumulkkum.server.common.log.wrapper;
 
 import jakarta.servlet.ReadListener;
 import jakarta.servlet.ServletInputStream;
diff --git a/src/main/java/org/kkumulkkum/server/domain/BaseTimeEntity.java b/src/main/java/org/kkumulkkum/server/domain/base/BaseTimeEntity.java
similarity index 92%
rename from src/main/java/org/kkumulkkum/server/domain/BaseTimeEntity.java
rename to src/main/java/org/kkumulkkum/server/domain/base/BaseTimeEntity.java
index b8764c5..17b35d0 100644
--- a/src/main/java/org/kkumulkkum/server/domain/BaseTimeEntity.java
+++ b/src/main/java/org/kkumulkkum/server/domain/base/BaseTimeEntity.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.domain;
+package org.kkumulkkum.server.domain.base;
 
 import jakarta.persistence.EntityListeners;
 import jakarta.persistence.MappedSuperclass;
diff --git a/src/main/java/org/kkumulkkum/server/domain/enums/Role.java b/src/main/java/org/kkumulkkum/server/domain/enums/Role.java
deleted file mode 100644
index 25d7251..0000000
--- a/src/main/java/org/kkumulkkum/server/domain/enums/Role.java
+++ /dev/null
@@ -1,6 +0,0 @@
-package org.kkumulkkum.server.domain.enums;
-
-public enum Role {
-    USER,
-    ADMIN
-}
diff --git a/src/main/java/org/kkumulkkum/server/domain/Meeting.java b/src/main/java/org/kkumulkkum/server/domain/meeting/Meeting.java
similarity index 83%
rename from src/main/java/org/kkumulkkum/server/domain/Meeting.java
rename to src/main/java/org/kkumulkkum/server/domain/meeting/Meeting.java
index 7dbb3d4..bb2206b 100644
--- a/src/main/java/org/kkumulkkum/server/domain/Meeting.java
+++ b/src/main/java/org/kkumulkkum/server/domain/meeting/Meeting.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.domain;
+package org.kkumulkkum.server.domain.meeting;
 
 import jakarta.persistence.*;
 import lombok.AccessLevel;
@@ -6,6 +6,8 @@
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 import org.hibernate.annotations.BatchSize;
+import org.kkumulkkum.server.domain.member.Member;
+import org.kkumulkkum.server.domain.base.BaseTimeEntity;
 
 import java.util.List;
 
diff --git a/src/main/java/org/kkumulkkum/server/service/meeting/MeetingEditor.java b/src/main/java/org/kkumulkkum/server/domain/meeting/manager/MeetingEditor.java
similarity index 66%
rename from src/main/java/org/kkumulkkum/server/service/meeting/MeetingEditor.java
rename to src/main/java/org/kkumulkkum/server/domain/meeting/manager/MeetingEditor.java
index c67cc2a..bb72779 100644
--- a/src/main/java/org/kkumulkkum/server/service/meeting/MeetingEditor.java
+++ b/src/main/java/org/kkumulkkum/server/domain/meeting/manager/MeetingEditor.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.service.meeting;
+package org.kkumulkkum.server.domain.meeting.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.Meeting;
-import org.kkumulkkum.server.dto.meeting.request.MeetingCreateDto;
+import org.kkumulkkum.server.domain.meeting.Meeting;
+import org.kkumulkkum.server.api.meeting.dto.request.MeetingCreateDto;
 import org.springframework.stereotype.Component;
 
 @Component
diff --git a/src/main/java/org/kkumulkkum/server/service/meeting/MeetingRemover.java b/src/main/java/org/kkumulkkum/server/domain/meeting/manager/MeetingRemover.java
similarity index 71%
rename from src/main/java/org/kkumulkkum/server/service/meeting/MeetingRemover.java
rename to src/main/java/org/kkumulkkum/server/domain/meeting/manager/MeetingRemover.java
index a368041..04c9150 100644
--- a/src/main/java/org/kkumulkkum/server/service/meeting/MeetingRemover.java
+++ b/src/main/java/org/kkumulkkum/server/domain/meeting/manager/MeetingRemover.java
@@ -1,7 +1,7 @@
-package org.kkumulkkum.server.service.meeting;
+package org.kkumulkkum.server.domain.meeting.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.repository.MeetingRepository;
+import org.kkumulkkum.server.domain.meeting.repository.MeetingRepository;
 import org.springframework.stereotype.Component;
 
 @Component
diff --git a/src/main/java/org/kkumulkkum/server/service/meeting/MeetingRetriever.java b/src/main/java/org/kkumulkkum/server/domain/meeting/manager/MeetingRetriever.java
similarity index 76%
rename from src/main/java/org/kkumulkkum/server/service/meeting/MeetingRetriever.java
rename to src/main/java/org/kkumulkkum/server/domain/meeting/manager/MeetingRetriever.java
index 336c74d..ebee788 100644
--- a/src/main/java/org/kkumulkkum/server/service/meeting/MeetingRetriever.java
+++ b/src/main/java/org/kkumulkkum/server/domain/meeting/manager/MeetingRetriever.java
@@ -1,11 +1,11 @@
-package org.kkumulkkum.server.service.meeting;
+package org.kkumulkkum.server.domain.meeting.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.Meeting;
-import org.kkumulkkum.server.dto.meeting.MeetingMetCountDto;
-import org.kkumulkkum.server.exception.MeetingException;
-import org.kkumulkkum.server.exception.code.MeetingErrorCode;
-import org.kkumulkkum.server.repository.MeetingRepository;
+import org.kkumulkkum.server.domain.meeting.Meeting;
+import org.kkumulkkum.server.api.meeting.dto.MeetingMetCountDto;
+import org.kkumulkkum.server.common.exception.MeetingException;
+import org.kkumulkkum.server.common.exception.code.MeetingErrorCode;
+import org.kkumulkkum.server.domain.meeting.repository.MeetingRepository;
 import org.springframework.stereotype.Component;
 
 import java.util.List;
diff --git a/src/main/java/org/kkumulkkum/server/service/meeting/MeetingSaver.java b/src/main/java/org/kkumulkkum/server/domain/meeting/manager/MeetingSaver.java
similarity index 62%
rename from src/main/java/org/kkumulkkum/server/service/meeting/MeetingSaver.java
rename to src/main/java/org/kkumulkkum/server/domain/meeting/manager/MeetingSaver.java
index 28426af..d7a5494 100644
--- a/src/main/java/org/kkumulkkum/server/service/meeting/MeetingSaver.java
+++ b/src/main/java/org/kkumulkkum/server/domain/meeting/manager/MeetingSaver.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.service.meeting;
+package org.kkumulkkum.server.domain.meeting.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.Meeting;
-import org.kkumulkkum.server.repository.MeetingRepository;
+import org.kkumulkkum.server.domain.meeting.Meeting;
+import org.kkumulkkum.server.domain.meeting.repository.MeetingRepository;
 import org.springframework.stereotype.Component;
 
 @Component
diff --git a/src/main/java/org/kkumulkkum/server/repository/MeetingRepository.java b/src/main/java/org/kkumulkkum/server/domain/meeting/repository/MeetingRepository.java
similarity index 73%
rename from src/main/java/org/kkumulkkum/server/repository/MeetingRepository.java
rename to src/main/java/org/kkumulkkum/server/domain/meeting/repository/MeetingRepository.java
index b8c89b8..1dac6ef 100644
--- a/src/main/java/org/kkumulkkum/server/repository/MeetingRepository.java
+++ b/src/main/java/org/kkumulkkum/server/domain/meeting/repository/MeetingRepository.java
@@ -1,7 +1,7 @@
-package org.kkumulkkum.server.repository;
+package org.kkumulkkum.server.domain.meeting.repository;
 
-import org.kkumulkkum.server.domain.Meeting;
-import org.kkumulkkum.server.dto.meeting.MeetingMetCountDto;
+import org.kkumulkkum.server.domain.meeting.Meeting;
+import org.kkumulkkum.server.api.meeting.dto.MeetingMetCountDto;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 
@@ -18,7 +18,7 @@ public interface MeetingRepository extends JpaRepository<Meeting, Long> {
     List<Meeting> findAllByUserId(Long userId);
 
     @Query("""
-        SELECT new org.kkumulkkum.server.dto.meeting.MeetingMetCountDto (m, COUNT(p.id)) 
+        SELECT new org.kkumulkkum.server.api.meeting.dto.MeetingMetCountDto (m, COUNT(p.id)) 
         FROM Meeting m 
         LEFT JOIN Promise p ON p.meeting.id = m.id AND p.isCompleted = true 
         WHERE m.id = :meetingId 
diff --git a/src/main/java/org/kkumulkkum/server/domain/Member.java b/src/main/java/org/kkumulkkum/server/domain/member/Member.java
similarity index 76%
rename from src/main/java/org/kkumulkkum/server/domain/Member.java
rename to src/main/java/org/kkumulkkum/server/domain/member/Member.java
index 9522315..878c31c 100644
--- a/src/main/java/org/kkumulkkum/server/domain/Member.java
+++ b/src/main/java/org/kkumulkkum/server/domain/member/Member.java
@@ -1,10 +1,13 @@
-package org.kkumulkkum.server.domain;
+package org.kkumulkkum.server.domain.member;
 
 import jakarta.persistence.*;
 import lombok.AccessLevel;
 import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
+import org.kkumulkkum.server.domain.user.User;
+import org.kkumulkkum.server.domain.base.BaseTimeEntity;
+import org.kkumulkkum.server.domain.meeting.Meeting;
 
 @Entity
 @Getter
diff --git a/src/main/java/org/kkumulkkum/server/service/member/MemberRemover.java b/src/main/java/org/kkumulkkum/server/domain/member/manager/MemberRemover.java
similarity index 71%
rename from src/main/java/org/kkumulkkum/server/service/member/MemberRemover.java
rename to src/main/java/org/kkumulkkum/server/domain/member/manager/MemberRemover.java
index 31e9d14..932c52a 100644
--- a/src/main/java/org/kkumulkkum/server/service/member/MemberRemover.java
+++ b/src/main/java/org/kkumulkkum/server/domain/member/manager/MemberRemover.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.service.member;
+package org.kkumulkkum.server.domain.member.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.Member;
-import org.kkumulkkum.server.repository.MemberRepository;
+import org.kkumulkkum.server.domain.member.Member;
+import org.kkumulkkum.server.domain.member.repository.MemberRepository;
 import org.springframework.stereotype.Component;
 
 import java.util.List;
diff --git a/src/main/java/org/kkumulkkum/server/service/member/MemberRetreiver.java b/src/main/java/org/kkumulkkum/server/domain/member/manager/MemberRetreiver.java
similarity index 81%
rename from src/main/java/org/kkumulkkum/server/service/member/MemberRetreiver.java
rename to src/main/java/org/kkumulkkum/server/domain/member/manager/MemberRetreiver.java
index b1abb5d..5e380ec 100644
--- a/src/main/java/org/kkumulkkum/server/service/member/MemberRetreiver.java
+++ b/src/main/java/org/kkumulkkum/server/domain/member/manager/MemberRetreiver.java
@@ -1,11 +1,11 @@
-package org.kkumulkkum.server.service.member;
+package org.kkumulkkum.server.domain.member.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.Member;
-import org.kkumulkkum.server.dto.member.response.MemberDto;
-import org.kkumulkkum.server.exception.MemberException;
-import org.kkumulkkum.server.exception.code.MemberErrorCode;
-import org.kkumulkkum.server.repository.MemberRepository;
+import org.kkumulkkum.server.domain.member.Member;
+import org.kkumulkkum.server.api.meeting.dto.response.MemberDto;
+import org.kkumulkkum.server.common.exception.MemberException;
+import org.kkumulkkum.server.common.exception.code.MemberErrorCode;
+import org.kkumulkkum.server.domain.member.repository.MemberRepository;
 import org.springframework.stereotype.Component;
 
 import java.util.List;
diff --git a/src/main/java/org/kkumulkkum/server/service/member/MemberSaver.java b/src/main/java/org/kkumulkkum/server/domain/member/manager/MemberSaver.java
similarity index 63%
rename from src/main/java/org/kkumulkkum/server/service/member/MemberSaver.java
rename to src/main/java/org/kkumulkkum/server/domain/member/manager/MemberSaver.java
index 75f988b..67a7a14 100644
--- a/src/main/java/org/kkumulkkum/server/service/member/MemberSaver.java
+++ b/src/main/java/org/kkumulkkum/server/domain/member/manager/MemberSaver.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.service.member;
+package org.kkumulkkum.server.domain.member.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.Member;
-import org.kkumulkkum.server.repository.MemberRepository;
+import org.kkumulkkum.server.domain.member.Member;
+import org.kkumulkkum.server.domain.member.repository.MemberRepository;
 import org.springframework.stereotype.Component;
 
 
diff --git a/src/main/java/org/kkumulkkum/server/repository/MemberRepository.java b/src/main/java/org/kkumulkkum/server/domain/member/repository/MemberRepository.java
similarity index 85%
rename from src/main/java/org/kkumulkkum/server/repository/MemberRepository.java
rename to src/main/java/org/kkumulkkum/server/domain/member/repository/MemberRepository.java
index a38a5b5..bfcbf61 100644
--- a/src/main/java/org/kkumulkkum/server/repository/MemberRepository.java
+++ b/src/main/java/org/kkumulkkum/server/domain/member/repository/MemberRepository.java
@@ -1,7 +1,7 @@
-package org.kkumulkkum.server.repository;
+package org.kkumulkkum.server.domain.member.repository;
 
-import org.kkumulkkum.server.domain.Member;
-import org.kkumulkkum.server.dto.member.response.MemberDto;
+import org.kkumulkkum.server.domain.member.Member;
+import org.kkumulkkum.server.api.meeting.dto.response.MemberDto;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 
@@ -15,7 +15,7 @@ public interface MemberRepository extends JpaRepository<Member, Long> {
     boolean existsByMeetingIdAndUserId(Long meetingId, Long userId);
 
     @Query("""
-            SELECT new org.kkumulkkum.server.dto.member.response.MemberDto
+            SELECT new org.kkumulkkum.server.api.meeting.dto.response.MemberDto
             (m.id, ui.name, ui.profileImg)
             FROM Member m
             JOIN FETCH UserInfo ui ON m.user.id = ui.user.id
@@ -51,7 +51,7 @@ SELECT CASE WHEN EXISTS (
     Member findByUserIdAndPromiseId(Long userId, Long promiseId);
 
     @Query("""
-            SELECT new org.kkumulkkum.server.dto.member.response.MemberDto
+            SELECT new org.kkumulkkum.server.api.meeting.dto.response.MemberDto
             (m.id, ui.name, ui.profileImg)
             FROM Member m
             JOIN m.meeting mt
diff --git a/src/main/java/org/kkumulkkum/server/domain/Participant.java b/src/main/java/org/kkumulkkum/server/domain/participant/Participant.java
similarity index 90%
rename from src/main/java/org/kkumulkkum/server/domain/Participant.java
rename to src/main/java/org/kkumulkkum/server/domain/participant/Participant.java
index 33d13d6..729c1f0 100644
--- a/src/main/java/org/kkumulkkum/server/domain/Participant.java
+++ b/src/main/java/org/kkumulkkum/server/domain/participant/Participant.java
@@ -1,10 +1,13 @@
-package org.kkumulkkum.server.domain;
+package org.kkumulkkum.server.domain.participant;
 
 import jakarta.persistence.*;
 import lombok.AccessLevel;
 import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
+import org.kkumulkkum.server.domain.promise.Promise;
+import org.kkumulkkum.server.domain.base.BaseTimeEntity;
+import org.kkumulkkum.server.domain.member.Member;
 
 import java.time.LocalDateTime;
 
diff --git a/src/main/java/org/kkumulkkum/server/service/participant/ParticipantEditor.java b/src/main/java/org/kkumulkkum/server/domain/participant/manager/ParticipantEditor.java
similarity index 82%
rename from src/main/java/org/kkumulkkum/server/service/participant/ParticipantEditor.java
rename to src/main/java/org/kkumulkkum/server/domain/participant/manager/ParticipantEditor.java
index caf5a76..6e7de48 100644
--- a/src/main/java/org/kkumulkkum/server/service/participant/ParticipantEditor.java
+++ b/src/main/java/org/kkumulkkum/server/domain/participant/manager/ParticipantEditor.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.service.participant;
+package org.kkumulkkum.server.domain.participant.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.Participant;
-import org.kkumulkkum.server.dto.participant.request.PreparationInfoDto;
+import org.kkumulkkum.server.domain.participant.Participant;
+import org.kkumulkkum.server.api.participant.dto.request.PreparationInfoDto;
 import org.springframework.stereotype.Component;
 
 @Component
diff --git a/src/main/java/org/kkumulkkum/server/service/participant/ParticipantRemover.java b/src/main/java/org/kkumulkkum/server/domain/participant/manager/ParticipantRemover.java
similarity index 74%
rename from src/main/java/org/kkumulkkum/server/service/participant/ParticipantRemover.java
rename to src/main/java/org/kkumulkkum/server/domain/participant/manager/ParticipantRemover.java
index ada065f..79618e8 100644
--- a/src/main/java/org/kkumulkkum/server/service/participant/ParticipantRemover.java
+++ b/src/main/java/org/kkumulkkum/server/domain/participant/manager/ParticipantRemover.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.service.participant;
+package org.kkumulkkum.server.domain.participant.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.Participant;
-import org.kkumulkkum.server.repository.ParticipantRepository;
+import org.kkumulkkum.server.domain.participant.Participant;
+import org.kkumulkkum.server.domain.participant.repository.ParticipantRepository;
 import org.springframework.stereotype.Component;
 
 import java.util.List;
diff --git a/src/main/java/org/kkumulkkum/server/service/participant/ParticipantRetriever.java b/src/main/java/org/kkumulkkum/server/domain/participant/manager/ParticipantRetriever.java
similarity index 81%
rename from src/main/java/org/kkumulkkum/server/service/participant/ParticipantRetriever.java
rename to src/main/java/org/kkumulkkum/server/domain/participant/manager/ParticipantRetriever.java
index 8cf537c..0a5a50c 100644
--- a/src/main/java/org/kkumulkkum/server/service/participant/ParticipantRetriever.java
+++ b/src/main/java/org/kkumulkkum/server/domain/participant/manager/ParticipantRetriever.java
@@ -1,12 +1,12 @@
-package org.kkumulkkum.server.service.participant;
+package org.kkumulkkum.server.domain.participant.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.Participant;
-import org.kkumulkkum.server.dto.participant.ParticipantStatusUserInfoDto;
-import org.kkumulkkum.server.dto.participant.response.LateComerDto;
-import org.kkumulkkum.server.exception.ParticipantException;
-import org.kkumulkkum.server.exception.code.ParticipantErrorCode;
-import org.kkumulkkum.server.repository.ParticipantRepository;
+import org.kkumulkkum.server.domain.participant.Participant;
+import org.kkumulkkum.server.api.participant.dto.ParticipantStatusUserInfoDto;
+import org.kkumulkkum.server.api.participant.dto.response.LateComerDto;
+import org.kkumulkkum.server.common.exception.ParticipantException;
+import org.kkumulkkum.server.common.exception.code.ParticipantErrorCode;
+import org.kkumulkkum.server.domain.participant.repository.ParticipantRepository;
 import org.springframework.stereotype.Component;
 
 import java.util.List;
diff --git a/src/main/java/org/kkumulkkum/server/service/participant/ParticipantSaver.java b/src/main/java/org/kkumulkkum/server/domain/participant/manager/ParticipantSaver.java
similarity index 64%
rename from src/main/java/org/kkumulkkum/server/service/participant/ParticipantSaver.java
rename to src/main/java/org/kkumulkkum/server/domain/participant/manager/ParticipantSaver.java
index 8012b6d..924577d 100644
--- a/src/main/java/org/kkumulkkum/server/service/participant/ParticipantSaver.java
+++ b/src/main/java/org/kkumulkkum/server/domain/participant/manager/ParticipantSaver.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.service.participant;
+package org.kkumulkkum.server.domain.participant.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.Participant;
-import org.kkumulkkum.server.repository.ParticipantRepository;
+import org.kkumulkkum.server.domain.participant.Participant;
+import org.kkumulkkum.server.domain.participant.repository.ParticipantRepository;
 import org.springframework.stereotype.Component;
 
 import java.util.List;
diff --git a/src/main/java/org/kkumulkkum/server/repository/ParticipantRepository.java b/src/main/java/org/kkumulkkum/server/domain/participant/repository/ParticipantRepository.java
similarity index 86%
rename from src/main/java/org/kkumulkkum/server/repository/ParticipantRepository.java
rename to src/main/java/org/kkumulkkum/server/domain/participant/repository/ParticipantRepository.java
index 82a946e..65ef6f4 100644
--- a/src/main/java/org/kkumulkkum/server/repository/ParticipantRepository.java
+++ b/src/main/java/org/kkumulkkum/server/domain/participant/repository/ParticipantRepository.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.repository;
+package org.kkumulkkum.server.domain.participant.repository;
 
-import org.kkumulkkum.server.domain.Participant;
-import org.kkumulkkum.server.dto.participant.ParticipantStatusUserInfoDto;
-import org.kkumulkkum.server.dto.participant.response.LateComerDto;
+import org.kkumulkkum.server.domain.participant.Participant;
+import org.kkumulkkum.server.api.participant.dto.ParticipantStatusUserInfoDto;
+import org.kkumulkkum.server.api.participant.dto.response.LateComerDto;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 
@@ -18,7 +18,7 @@ public interface ParticipantRepository extends JpaRepository<Participant, Long>
     Optional<Participant> findByPromiseIdAndUserId(Long promiseId, Long userId);
 
     @Query("""
-            SELECT new org.kkumulkkum.server.dto.participant.ParticipantStatusUserInfoDto
+            SELECT new org.kkumulkkum.server.api.participant.dto.ParticipantStatusUserInfoDto
             (p.id, p.member.id, ui.name, ui.profileImg, p.preparationStartAt, p.departureAt, p.arrivalAt)
             FROM Participant p
             JOIN Member m ON p.member.id = m.id
@@ -27,7 +27,7 @@ public interface ParticipantRepository extends JpaRepository<Participant, Long>
     List<ParticipantStatusUserInfoDto> findAllByPromiseIdWithUserInfo(Long promiseId);
 
     @Query("""
-            SELECT new org.kkumulkkum.server.dto.participant.response.LateComerDto
+            SELECT new org.kkumulkkum.server.api.participant.dto.response.LateComerDto
             (p.id, ui.name, ui.profileImg)
             FROM Participant p 
             JOIN Member m ON p.member.id = m.id 
diff --git a/src/main/java/org/kkumulkkum/server/domain/enums/DressUpLevel.java b/src/main/java/org/kkumulkkum/server/domain/promise/DressUpLevel.java
similarity index 86%
rename from src/main/java/org/kkumulkkum/server/domain/enums/DressUpLevel.java
rename to src/main/java/org/kkumulkkum/server/domain/promise/DressUpLevel.java
index e67b92f..6630a22 100644
--- a/src/main/java/org/kkumulkkum/server/domain/enums/DressUpLevel.java
+++ b/src/main/java/org/kkumulkkum/server/domain/promise/DressUpLevel.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.domain.enums;
+package org.kkumulkkum.server.domain.promise;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;
diff --git a/src/main/java/org/kkumulkkum/server/domain/Promise.java b/src/main/java/org/kkumulkkum/server/domain/promise/Promise.java
similarity index 93%
rename from src/main/java/org/kkumulkkum/server/domain/Promise.java
rename to src/main/java/org/kkumulkkum/server/domain/promise/Promise.java
index 26c14e9..7d5bd8b 100644
--- a/src/main/java/org/kkumulkkum/server/domain/Promise.java
+++ b/src/main/java/org/kkumulkkum/server/domain/promise/Promise.java
@@ -1,11 +1,12 @@
-package org.kkumulkkum.server.domain;
+package org.kkumulkkum.server.domain.promise;
 
 import jakarta.persistence.*;
 import lombok.AccessLevel;
 import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
-import org.kkumulkkum.server.domain.enums.DressUpLevel;
+import org.kkumulkkum.server.domain.base.BaseTimeEntity;
+import org.kkumulkkum.server.domain.meeting.Meeting;
 
 import java.time.LocalDateTime;
 
diff --git a/src/main/java/org/kkumulkkum/server/service/promise/PromiseEditor.java b/src/main/java/org/kkumulkkum/server/domain/promise/manager/PromiseEditor.java
similarity index 80%
rename from src/main/java/org/kkumulkkum/server/service/promise/PromiseEditor.java
rename to src/main/java/org/kkumulkkum/server/domain/promise/manager/PromiseEditor.java
index 9aeb583..1c0c271 100644
--- a/src/main/java/org/kkumulkkum/server/service/promise/PromiseEditor.java
+++ b/src/main/java/org/kkumulkkum/server/domain/promise/manager/PromiseEditor.java
@@ -1,7 +1,7 @@
-package org.kkumulkkum.server.service.promise;
+package org.kkumulkkum.server.domain.promise.manager;
 
-import org.kkumulkkum.server.domain.Promise;
-import org.kkumulkkum.server.dto.promise.PromiseCreateDto;
+import org.kkumulkkum.server.domain.promise.Promise;
+import org.kkumulkkum.server.api.promise.dto.request.PromiseCreateDto;
 import org.springframework.stereotype.Component;
 
 @Component
diff --git a/src/main/java/org/kkumulkkum/server/service/promise/PromiseRemover.java b/src/main/java/org/kkumulkkum/server/domain/promise/manager/PromiseRemover.java
similarity index 77%
rename from src/main/java/org/kkumulkkum/server/service/promise/PromiseRemover.java
rename to src/main/java/org/kkumulkkum/server/domain/promise/manager/PromiseRemover.java
index 60a1b62..adda6c8 100644
--- a/src/main/java/org/kkumulkkum/server/service/promise/PromiseRemover.java
+++ b/src/main/java/org/kkumulkkum/server/domain/promise/manager/PromiseRemover.java
@@ -1,7 +1,7 @@
-package org.kkumulkkum.server.service.promise;
+package org.kkumulkkum.server.domain.promise.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.repository.PromiseRepository;
+import org.kkumulkkum.server.domain.promise.repository.PromiseRepository;
 import org.springframework.stereotype.Component;
 
 @Component
diff --git a/src/main/java/org/kkumulkkum/server/service/promise/PromiseRetriever.java b/src/main/java/org/kkumulkkum/server/domain/promise/manager/PromiseRetriever.java
similarity index 88%
rename from src/main/java/org/kkumulkkum/server/service/promise/PromiseRetriever.java
rename to src/main/java/org/kkumulkkum/server/domain/promise/manager/PromiseRetriever.java
index 5447609..eda34c2 100644
--- a/src/main/java/org/kkumulkkum/server/service/promise/PromiseRetriever.java
+++ b/src/main/java/org/kkumulkkum/server/domain/promise/manager/PromiseRetriever.java
@@ -1,10 +1,10 @@
-package org.kkumulkkum.server.service.promise;
+package org.kkumulkkum.server.domain.promise.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.Promise;
-import org.kkumulkkum.server.exception.PromiseException;
-import org.kkumulkkum.server.exception.code.PromiseErrorCode;
-import org.kkumulkkum.server.repository.PromiseRepository;
+import org.kkumulkkum.server.domain.promise.Promise;
+import org.kkumulkkum.server.common.exception.PromiseException;
+import org.kkumulkkum.server.common.exception.code.PromiseErrorCode;
+import org.kkumulkkum.server.domain.promise.repository.PromiseRepository;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageRequest;
 import org.springframework.stereotype.Component;
diff --git a/src/main/java/org/kkumulkkum/server/service/promise/PromiseSaver.java b/src/main/java/org/kkumulkkum/server/domain/promise/manager/PromiseSaver.java
similarity index 62%
rename from src/main/java/org/kkumulkkum/server/service/promise/PromiseSaver.java
rename to src/main/java/org/kkumulkkum/server/domain/promise/manager/PromiseSaver.java
index 81cfc01..9089e9f 100644
--- a/src/main/java/org/kkumulkkum/server/service/promise/PromiseSaver.java
+++ b/src/main/java/org/kkumulkkum/server/domain/promise/manager/PromiseSaver.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.service.promise;
+package org.kkumulkkum.server.domain.promise.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.Promise;
-import org.kkumulkkum.server.repository.PromiseRepository;
+import org.kkumulkkum.server.domain.promise.Promise;
+import org.kkumulkkum.server.domain.promise.repository.PromiseRepository;
 import org.springframework.stereotype.Component;
 
 @Component
diff --git a/src/main/java/org/kkumulkkum/server/repository/PromiseRepository.java b/src/main/java/org/kkumulkkum/server/domain/promise/repository/PromiseRepository.java
similarity index 95%
rename from src/main/java/org/kkumulkkum/server/repository/PromiseRepository.java
rename to src/main/java/org/kkumulkkum/server/domain/promise/repository/PromiseRepository.java
index b35aab8..b2e261b 100644
--- a/src/main/java/org/kkumulkkum/server/repository/PromiseRepository.java
+++ b/src/main/java/org/kkumulkkum/server/domain/promise/repository/PromiseRepository.java
@@ -1,6 +1,6 @@
-package org.kkumulkkum.server.repository;
+package org.kkumulkkum.server.domain.promise.repository;
 
-import org.kkumulkkum.server.domain.Promise;
+import org.kkumulkkum.server.domain.promise.Promise;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
diff --git a/src/main/java/org/kkumulkkum/server/domain/enums/Provider.java b/src/main/java/org/kkumulkkum/server/domain/user/Provider.java
similarity index 51%
rename from src/main/java/org/kkumulkkum/server/domain/enums/Provider.java
rename to src/main/java/org/kkumulkkum/server/domain/user/Provider.java
index b5772fa..272e578 100644
--- a/src/main/java/org/kkumulkkum/server/domain/enums/Provider.java
+++ b/src/main/java/org/kkumulkkum/server/domain/user/Provider.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.domain.enums;
+package org.kkumulkkum.server.domain.user;
 
 public enum Provider {
     KAKAO,
diff --git a/src/main/java/org/kkumulkkum/server/domain/user/Role.java b/src/main/java/org/kkumulkkum/server/domain/user/Role.java
new file mode 100644
index 0000000..ff9d778
--- /dev/null
+++ b/src/main/java/org/kkumulkkum/server/domain/user/Role.java
@@ -0,0 +1,6 @@
+package org.kkumulkkum.server.domain.user;
+
+public enum Role {
+    USER,
+    ADMIN
+}
diff --git a/src/main/java/org/kkumulkkum/server/domain/Token.java b/src/main/java/org/kkumulkkum/server/domain/user/Token.java
similarity index 93%
rename from src/main/java/org/kkumulkkum/server/domain/Token.java
rename to src/main/java/org/kkumulkkum/server/domain/user/Token.java
index f88bfcb..bec5820 100644
--- a/src/main/java/org/kkumulkkum/server/domain/Token.java
+++ b/src/main/java/org/kkumulkkum/server/domain/user/Token.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.domain;
+package org.kkumulkkum.server.domain.user;
 
 import lombok.AccessLevel;
 import lombok.Builder;
diff --git a/src/main/java/org/kkumulkkum/server/domain/User.java b/src/main/java/org/kkumulkkum/server/domain/user/User.java
similarity index 85%
rename from src/main/java/org/kkumulkkum/server/domain/User.java
rename to src/main/java/org/kkumulkkum/server/domain/user/User.java
index f1d5358..1d492e0 100644
--- a/src/main/java/org/kkumulkkum/server/domain/User.java
+++ b/src/main/java/org/kkumulkkum/server/domain/user/User.java
@@ -1,12 +1,11 @@
-package org.kkumulkkum.server.domain;
+package org.kkumulkkum.server.domain.user;
 
 import jakarta.persistence.*;
 import lombok.AccessLevel;
 import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
-import org.kkumulkkum.server.domain.enums.Provider;
-import org.kkumulkkum.server.domain.enums.Role;
+import org.kkumulkkum.server.domain.base.BaseTimeEntity;
 
 @Entity
 @Getter
diff --git a/src/main/java/org/kkumulkkum/server/service/auth/TokenRemover.java b/src/main/java/org/kkumulkkum/server/domain/user/manager/TokenRemover.java
similarity index 71%
rename from src/main/java/org/kkumulkkum/server/service/auth/TokenRemover.java
rename to src/main/java/org/kkumulkkum/server/domain/user/manager/TokenRemover.java
index b092068..976a1cc 100644
--- a/src/main/java/org/kkumulkkum/server/service/auth/TokenRemover.java
+++ b/src/main/java/org/kkumulkkum/server/domain/user/manager/TokenRemover.java
@@ -1,7 +1,7 @@
-package org.kkumulkkum.server.service.auth;
+package org.kkumulkkum.server.domain.user.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.repository.TokenRepository;
+import org.kkumulkkum.server.domain.user.repository.TokenRepository;
 import org.springframework.stereotype.Component;
 
 @Component
diff --git a/src/main/java/org/kkumulkkum/server/service/auth/TokenRetriever.java b/src/main/java/org/kkumulkkum/server/domain/user/manager/TokenRetriever.java
similarity index 59%
rename from src/main/java/org/kkumulkkum/server/service/auth/TokenRetriever.java
rename to src/main/java/org/kkumulkkum/server/domain/user/manager/TokenRetriever.java
index 220cb57..e5dbd84 100644
--- a/src/main/java/org/kkumulkkum/server/service/auth/TokenRetriever.java
+++ b/src/main/java/org/kkumulkkum/server/domain/user/manager/TokenRetriever.java
@@ -1,10 +1,10 @@
-package org.kkumulkkum.server.service.auth;
+package org.kkumulkkum.server.domain.user.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.Token;
-import org.kkumulkkum.server.exception.AuthException;
-import org.kkumulkkum.server.exception.code.AuthErrorCode;
-import org.kkumulkkum.server.repository.TokenRepository;
+import org.kkumulkkum.server.domain.user.Token;
+import org.kkumulkkum.server.common.exception.AuthException;
+import org.kkumulkkum.server.common.exception.code.AuthErrorCode;
+import org.kkumulkkum.server.domain.user.repository.TokenRepository;
 import org.springframework.stereotype.Component;
 
 @Component
diff --git a/src/main/java/org/kkumulkkum/server/service/auth/TokenSaver.java b/src/main/java/org/kkumulkkum/server/domain/user/manager/TokenSaver.java
similarity index 63%
rename from src/main/java/org/kkumulkkum/server/service/auth/TokenSaver.java
rename to src/main/java/org/kkumulkkum/server/domain/user/manager/TokenSaver.java
index 3f125b4..0111c2c 100644
--- a/src/main/java/org/kkumulkkum/server/service/auth/TokenSaver.java
+++ b/src/main/java/org/kkumulkkum/server/domain/user/manager/TokenSaver.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.service.auth;
+package org.kkumulkkum.server.domain.user.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.Token;
-import org.kkumulkkum.server.repository.TokenRepository;
+import org.kkumulkkum.server.domain.user.Token;
+import org.kkumulkkum.server.domain.user.repository.TokenRepository;
 import org.springframework.stereotype.Component;
 
 @Component
diff --git a/src/main/java/org/kkumulkkum/server/service/user/UserRemover.java b/src/main/java/org/kkumulkkum/server/domain/user/manager/UserRemover.java
similarity index 57%
rename from src/main/java/org/kkumulkkum/server/service/user/UserRemover.java
rename to src/main/java/org/kkumulkkum/server/domain/user/manager/UserRemover.java
index d047b7a..7fc308c 100644
--- a/src/main/java/org/kkumulkkum/server/service/user/UserRemover.java
+++ b/src/main/java/org/kkumulkkum/server/domain/user/manager/UserRemover.java
@@ -1,9 +1,8 @@
-package org.kkumulkkum.server.service.user;
+package org.kkumulkkum.server.domain.user.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.User;
-import org.kkumulkkum.server.repository.UserRepository;
-import org.kkumulkkum.server.service.userInfo.UserInfoRetriever;
+import org.kkumulkkum.server.domain.user.User;
+import org.kkumulkkum.server.domain.user.repository.UserRepository;
 import org.springframework.stereotype.Component;
 
 @Component
diff --git a/src/main/java/org/kkumulkkum/server/service/user/UserRetriever.java b/src/main/java/org/kkumulkkum/server/domain/user/manager/UserRetriever.java
similarity index 72%
rename from src/main/java/org/kkumulkkum/server/service/user/UserRetriever.java
rename to src/main/java/org/kkumulkkum/server/domain/user/manager/UserRetriever.java
index 0c61c0a..973f922 100644
--- a/src/main/java/org/kkumulkkum/server/service/user/UserRetriever.java
+++ b/src/main/java/org/kkumulkkum/server/domain/user/manager/UserRetriever.java
@@ -1,11 +1,11 @@
-package org.kkumulkkum.server.service.user;
+package org.kkumulkkum.server.domain.user.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.User;
-import org.kkumulkkum.server.domain.enums.Provider;
-import org.kkumulkkum.server.exception.UserException;
-import org.kkumulkkum.server.exception.code.UserErrorCode;
-import org.kkumulkkum.server.repository.UserRepository;
+import org.kkumulkkum.server.domain.user.User;
+import org.kkumulkkum.server.domain.user.Provider;
+import org.kkumulkkum.server.common.exception.UserException;
+import org.kkumulkkum.server.common.exception.code.UserErrorCode;
+import org.kkumulkkum.server.domain.user.repository.UserRepository;
 import org.springframework.stereotype.Component;
 
 @Component
diff --git a/src/main/java/org/kkumulkkum/server/service/user/UserSaver.java b/src/main/java/org/kkumulkkum/server/domain/user/manager/UserSaver.java
similarity index 63%
rename from src/main/java/org/kkumulkkum/server/service/user/UserSaver.java
rename to src/main/java/org/kkumulkkum/server/domain/user/manager/UserSaver.java
index 27e8f71..2c04b87 100644
--- a/src/main/java/org/kkumulkkum/server/service/user/UserSaver.java
+++ b/src/main/java/org/kkumulkkum/server/domain/user/manager/UserSaver.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.service.user;
+package org.kkumulkkum.server.domain.user.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.User;
-import org.kkumulkkum.server.repository.UserRepository;
+import org.kkumulkkum.server.domain.user.User;
+import org.kkumulkkum.server.domain.user.repository.UserRepository;
 import org.springframework.stereotype.Component;
 
 @Component
diff --git a/src/main/java/org/kkumulkkum/server/repository/TokenRepository.java b/src/main/java/org/kkumulkkum/server/domain/user/repository/TokenRepository.java
similarity index 68%
rename from src/main/java/org/kkumulkkum/server/repository/TokenRepository.java
rename to src/main/java/org/kkumulkkum/server/domain/user/repository/TokenRepository.java
index 64da715..10dadbf 100644
--- a/src/main/java/org/kkumulkkum/server/repository/TokenRepository.java
+++ b/src/main/java/org/kkumulkkum/server/domain/user/repository/TokenRepository.java
@@ -1,6 +1,6 @@
-package org.kkumulkkum.server.repository;
+package org.kkumulkkum.server.domain.user.repository;
 
-import org.kkumulkkum.server.domain.Token;
+import org.kkumulkkum.server.domain.user.Token;
 import org.springframework.data.repository.CrudRepository;
 
 import java.util.Optional;
diff --git a/src/main/java/org/kkumulkkum/server/repository/UserRepository.java b/src/main/java/org/kkumulkkum/server/domain/user/repository/UserRepository.java
similarity index 68%
rename from src/main/java/org/kkumulkkum/server/repository/UserRepository.java
rename to src/main/java/org/kkumulkkum/server/domain/user/repository/UserRepository.java
index aeb6867..4fe8767 100644
--- a/src/main/java/org/kkumulkkum/server/repository/UserRepository.java
+++ b/src/main/java/org/kkumulkkum/server/domain/user/repository/UserRepository.java
@@ -1,7 +1,7 @@
-package org.kkumulkkum.server.repository;
+package org.kkumulkkum.server.domain.user.repository;
 
-import org.kkumulkkum.server.domain.User;
-import org.kkumulkkum.server.domain.enums.Provider;
+import org.kkumulkkum.server.domain.user.User;
+import org.kkumulkkum.server.domain.user.Provider;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 import java.util.Optional;
diff --git a/src/main/java/org/kkumulkkum/server/domain/UserInfo.java b/src/main/java/org/kkumulkkum/server/domain/userinfo/UserInfo.java
similarity index 92%
rename from src/main/java/org/kkumulkkum/server/domain/UserInfo.java
rename to src/main/java/org/kkumulkkum/server/domain/userinfo/UserInfo.java
index d2ba684..ae57b9d 100644
--- a/src/main/java/org/kkumulkkum/server/domain/UserInfo.java
+++ b/src/main/java/org/kkumulkkum/server/domain/userinfo/UserInfo.java
@@ -1,10 +1,12 @@
-package org.kkumulkkum.server.domain;
+package org.kkumulkkum.server.domain.userinfo;
 
 import jakarta.persistence.*;
 import lombok.AccessLevel;
 import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
+import org.kkumulkkum.server.domain.base.BaseTimeEntity;
+import org.kkumulkkum.server.domain.user.User;
 
 @Entity
 @Getter
diff --git a/src/main/java/org/kkumulkkum/server/service/userInfo/UserInfoEditor.java b/src/main/java/org/kkumulkkum/server/domain/userinfo/manager/UserInfoEditor.java
similarity index 81%
rename from src/main/java/org/kkumulkkum/server/service/userInfo/UserInfoEditor.java
rename to src/main/java/org/kkumulkkum/server/domain/userinfo/manager/UserInfoEditor.java
index 225c832..ccbbbda 100644
--- a/src/main/java/org/kkumulkkum/server/service/userInfo/UserInfoEditor.java
+++ b/src/main/java/org/kkumulkkum/server/domain/userinfo/manager/UserInfoEditor.java
@@ -1,6 +1,6 @@
-package org.kkumulkkum.server.service.userInfo;
+package org.kkumulkkum.server.domain.userinfo.manager;
 
-import org.kkumulkkum.server.domain.UserInfo;
+import org.kkumulkkum.server.domain.userinfo.UserInfo;
 import org.springframework.stereotype.Component;
 
 @Component
diff --git a/src/main/java/org/kkumulkkum/server/service/userInfo/UserInfoRemover.java b/src/main/java/org/kkumulkkum/server/domain/userinfo/manager/UserInfoRemover.java
similarity index 71%
rename from src/main/java/org/kkumulkkum/server/service/userInfo/UserInfoRemover.java
rename to src/main/java/org/kkumulkkum/server/domain/userinfo/manager/UserInfoRemover.java
index 2b8d428..2b2a75f 100644
--- a/src/main/java/org/kkumulkkum/server/service/userInfo/UserInfoRemover.java
+++ b/src/main/java/org/kkumulkkum/server/domain/userinfo/manager/UserInfoRemover.java
@@ -1,7 +1,7 @@
-package org.kkumulkkum.server.service.userInfo;
+package org.kkumulkkum.server.domain.userinfo.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.repository.UserInfoRepository;
+import org.kkumulkkum.server.domain.userinfo.repository.UserInfoRepository;
 import org.springframework.stereotype.Component;
 
 @Component
diff --git a/src/main/java/org/kkumulkkum/server/service/userInfo/UserInfoRetriever.java b/src/main/java/org/kkumulkkum/server/domain/userinfo/manager/UserInfoRetriever.java
similarity index 67%
rename from src/main/java/org/kkumulkkum/server/service/userInfo/UserInfoRetriever.java
rename to src/main/java/org/kkumulkkum/server/domain/userinfo/manager/UserInfoRetriever.java
index 982e344..2f81284 100644
--- a/src/main/java/org/kkumulkkum/server/service/userInfo/UserInfoRetriever.java
+++ b/src/main/java/org/kkumulkkum/server/domain/userinfo/manager/UserInfoRetriever.java
@@ -1,10 +1,10 @@
-package org.kkumulkkum.server.service.userInfo;
+package org.kkumulkkum.server.domain.userinfo.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.UserInfo;
-import org.kkumulkkum.server.exception.UserException;
-import org.kkumulkkum.server.exception.code.UserErrorCode;
-import org.kkumulkkum.server.repository.UserInfoRepository;
+import org.kkumulkkum.server.domain.userinfo.UserInfo;
+import org.kkumulkkum.server.common.exception.UserException;
+import org.kkumulkkum.server.common.exception.code.UserErrorCode;
+import org.kkumulkkum.server.domain.userinfo.repository.UserInfoRepository;
 import org.springframework.stereotype.Component;
 
 @Component
diff --git a/src/main/java/org/kkumulkkum/server/service/userInfo/UserInfoSaver.java b/src/main/java/org/kkumulkkum/server/domain/userinfo/manager/UserInfoSaver.java
similarity index 62%
rename from src/main/java/org/kkumulkkum/server/service/userInfo/UserInfoSaver.java
rename to src/main/java/org/kkumulkkum/server/domain/userinfo/manager/UserInfoSaver.java
index 771b5c0..10e1eb1 100644
--- a/src/main/java/org/kkumulkkum/server/service/userInfo/UserInfoSaver.java
+++ b/src/main/java/org/kkumulkkum/server/domain/userinfo/manager/UserInfoSaver.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.service.userInfo;
+package org.kkumulkkum.server.domain.userinfo.manager;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.domain.UserInfo;
-import org.kkumulkkum.server.repository.UserInfoRepository;
+import org.kkumulkkum.server.domain.userinfo.UserInfo;
+import org.kkumulkkum.server.domain.userinfo.repository.UserInfoRepository;
 import org.springframework.stereotype.Component;
 
 @Component
diff --git a/src/main/java/org/kkumulkkum/server/repository/UserInfoRepository.java b/src/main/java/org/kkumulkkum/server/domain/userinfo/repository/UserInfoRepository.java
similarity index 82%
rename from src/main/java/org/kkumulkkum/server/repository/UserInfoRepository.java
rename to src/main/java/org/kkumulkkum/server/domain/userinfo/repository/UserInfoRepository.java
index b87e26f..9fd6bd3 100644
--- a/src/main/java/org/kkumulkkum/server/repository/UserInfoRepository.java
+++ b/src/main/java/org/kkumulkkum/server/domain/userinfo/repository/UserInfoRepository.java
@@ -1,6 +1,6 @@
-package org.kkumulkkum.server.repository;
+package org.kkumulkkum.server.domain.userinfo.repository;
 
-import org.kkumulkkum.server.domain.UserInfo;
+import org.kkumulkkum.server.domain.userinfo.UserInfo;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 
diff --git a/src/main/java/org/kkumulkkum/server/dto/meeting/MeetingMetCountDto.java b/src/main/java/org/kkumulkkum/server/dto/meeting/MeetingMetCountDto.java
deleted file mode 100644
index 72281fa..0000000
--- a/src/main/java/org/kkumulkkum/server/dto/meeting/MeetingMetCountDto.java
+++ /dev/null
@@ -1,9 +0,0 @@
-package org.kkumulkkum.server.dto.meeting;
-
-import org.kkumulkkum.server.domain.Meeting;
-
-public record MeetingMetCountDto (
-        Meeting meeting,
-        Long metCount
-) {
-}
diff --git a/src/main/java/org/kkumulkkum/server/dto/test/TestDto.java b/src/main/java/org/kkumulkkum/server/dto/test/TestDto.java
deleted file mode 100644
index b7825f9..0000000
--- a/src/main/java/org/kkumulkkum/server/dto/test/TestDto.java
+++ /dev/null
@@ -1,9 +0,0 @@
-package org.kkumulkkum.server.dto.test;
-
-public record TestDto(
-        String test
-) {
-    public static TestDto from(String test) {
-        return new TestDto(test);
-    }
-}
diff --git a/src/main/java/org/kkumulkkum/server/config/AwsConfig.java b/src/main/java/org/kkumulkkum/server/external/config/AwsConfig.java
similarity index 97%
rename from src/main/java/org/kkumulkkum/server/config/AwsConfig.java
rename to src/main/java/org/kkumulkkum/server/external/config/AwsConfig.java
index 49817dd..9fe3b2c 100644
--- a/src/main/java/org/kkumulkkum/server/config/AwsConfig.java
+++ b/src/main/java/org/kkumulkkum/server/external/config/AwsConfig.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.config;
+package org.kkumulkkum.server.external.config;
 
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Bean;
diff --git a/src/main/java/org/kkumulkkum/server/config/FeignClientConfig.java b/src/main/java/org/kkumulkkum/server/external/config/FeignClientConfig.java
similarity index 86%
rename from src/main/java/org/kkumulkkum/server/config/FeignClientConfig.java
rename to src/main/java/org/kkumulkkum/server/external/config/FeignClientConfig.java
index 1182b92..395efc4 100644
--- a/src/main/java/org/kkumulkkum/server/config/FeignClientConfig.java
+++ b/src/main/java/org/kkumulkkum/server/external/config/FeignClientConfig.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.config;
+package org.kkumulkkum.server.external.config;
 
 import org.kkumulkkum.server.ServerApplication;
 import org.springframework.cloud.openfeign.EnableFeignClients;
diff --git a/src/main/java/org/kkumulkkum/server/config/FirebaseConfig.java b/src/main/java/org/kkumulkkum/server/external/config/FirebaseConfig.java
similarity index 86%
rename from src/main/java/org/kkumulkkum/server/config/FirebaseConfig.java
rename to src/main/java/org/kkumulkkum/server/external/config/FirebaseConfig.java
index 1da0082..a36c9fe 100644
--- a/src/main/java/org/kkumulkkum/server/config/FirebaseConfig.java
+++ b/src/main/java/org/kkumulkkum/server/external/config/FirebaseConfig.java
@@ -1,12 +1,12 @@
-package org.kkumulkkum.server.config;
+package org.kkumulkkum.server.external.config;
 
 import com.google.auth.oauth2.GoogleCredentials;
 import com.google.firebase.FirebaseApp;
 import com.google.firebase.FirebaseOptions;
 import jakarta.annotation.PostConstruct;
 import lombok.extern.slf4j.Slf4j;
-import org.kkumulkkum.server.exception.FirebaseException;
-import org.kkumulkkum.server.exception.code.FirebaseErrorCode;
+import org.kkumulkkum.server.common.exception.FirebaseException;
+import org.kkumulkkum.server.common.exception.code.FirebaseErrorCode;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.io.ClassPathResource;
 
diff --git a/src/main/java/org/kkumulkkum/server/controller/LocationController.java b/src/main/java/org/kkumulkkum/server/external/controller/naver/NaverLocationController.java
similarity index 71%
rename from src/main/java/org/kkumulkkum/server/controller/LocationController.java
rename to src/main/java/org/kkumulkkum/server/external/controller/naver/NaverLocationController.java
index 43f9b78..5b365fb 100644
--- a/src/main/java/org/kkumulkkum/server/controller/LocationController.java
+++ b/src/main/java/org/kkumulkkum/server/external/controller/naver/NaverLocationController.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.controller;
+package org.kkumulkkum.server.external.controller.naver;
 
 import lombok.RequiredArgsConstructor;
-import org.kkumulkkum.server.external.NaverService;
-import org.kkumulkkum.server.external.dto.LocationsDto;
+import org.kkumulkkum.server.external.service.naver.NaverService;
+import org.kkumulkkum.server.external.controller.naver.dto.LocationsDto;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestParam;
@@ -10,7 +10,7 @@
 
 @RestController
 @RequiredArgsConstructor
-public class LocationController {
+public class NaverLocationController {
 
     private final NaverService naverService;
 
diff --git a/src/main/java/org/kkumulkkum/server/external/dto/LocationDto.java b/src/main/java/org/kkumulkkum/server/external/controller/naver/dto/LocationDto.java
similarity index 70%
rename from src/main/java/org/kkumulkkum/server/external/dto/LocationDto.java
rename to src/main/java/org/kkumulkkum/server/external/controller/naver/dto/LocationDto.java
index 061f475..7658275 100644
--- a/src/main/java/org/kkumulkkum/server/external/dto/LocationDto.java
+++ b/src/main/java/org/kkumulkkum/server/external/controller/naver/dto/LocationDto.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.external.dto;
+package org.kkumulkkum.server.external.controller.naver.dto;
 
 public record LocationDto(
 
diff --git a/src/main/java/org/kkumulkkum/server/external/dto/LocationsDto.java b/src/main/java/org/kkumulkkum/server/external/controller/naver/dto/LocationsDto.java
similarity index 78%
rename from src/main/java/org/kkumulkkum/server/external/dto/LocationsDto.java
rename to src/main/java/org/kkumulkkum/server/external/controller/naver/dto/LocationsDto.java
index b62044b..c3d8567 100644
--- a/src/main/java/org/kkumulkkum/server/external/dto/LocationsDto.java
+++ b/src/main/java/org/kkumulkkum/server/external/controller/naver/dto/LocationsDto.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.external.dto;
+package org.kkumulkkum.server.external.controller.naver.dto;
 
 import java.util.List;
 
diff --git a/src/main/java/org/kkumulkkum/server/auth/openfeign/apple/AppleFeignClient.java b/src/main/java/org/kkumulkkum/server/external/service/apple/AppleFeignClient.java
similarity index 86%
rename from src/main/java/org/kkumulkkum/server/auth/openfeign/apple/AppleFeignClient.java
rename to src/main/java/org/kkumulkkum/server/external/service/apple/AppleFeignClient.java
index e5f162e..cb46138 100644
--- a/src/main/java/org/kkumulkkum/server/auth/openfeign/apple/AppleFeignClient.java
+++ b/src/main/java/org/kkumulkkum/server/external/service/apple/AppleFeignClient.java
@@ -1,7 +1,7 @@
-package org.kkumulkkum.server.auth.openfeign.apple;
+package org.kkumulkkum.server.external.service.apple;
 
-import org.kkumulkkum.server.auth.openfeign.apple.dto.ApplePublicKeys;
-import org.kkumulkkum.server.auth.openfeign.apple.dto.AppleTokenDto;
+import org.kkumulkkum.server.api.auth.dto.verify.ApplePublicKeys;
+import org.kkumulkkum.server.external.service.apple.dto.AppleTokenDto;
 import org.springframework.cloud.openfeign.FeignClient;
 import org.springframework.http.MediaType;
 import org.springframework.web.bind.annotation.GetMapping;
diff --git a/src/main/java/org/kkumulkkum/server/auth/openfeign/apple/dto/AppleTokenDto.java b/src/main/java/org/kkumulkkum/server/external/service/apple/dto/AppleTokenDto.java
similarity index 85%
rename from src/main/java/org/kkumulkkum/server/auth/openfeign/apple/dto/AppleTokenDto.java
rename to src/main/java/org/kkumulkkum/server/external/service/apple/dto/AppleTokenDto.java
index 627e0e2..85caabb 100644
--- a/src/main/java/org/kkumulkkum/server/auth/openfeign/apple/dto/AppleTokenDto.java
+++ b/src/main/java/org/kkumulkkum/server/external/service/apple/dto/AppleTokenDto.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.auth.openfeign.apple.dto;
+package org.kkumulkkum.server.external.service.apple.dto;
 
 import com.fasterxml.jackson.databind.PropertyNamingStrategies;
 import com.fasterxml.jackson.databind.annotation.JsonNaming;
diff --git a/src/main/java/org/kkumulkkum/server/external/enums/FcmContent.java b/src/main/java/org/kkumulkkum/server/external/service/fcm/FcmContent.java
similarity index 93%
rename from src/main/java/org/kkumulkkum/server/external/enums/FcmContent.java
rename to src/main/java/org/kkumulkkum/server/external/service/fcm/FcmContent.java
index a79ffb9..64abf05 100644
--- a/src/main/java/org/kkumulkkum/server/external/enums/FcmContent.java
+++ b/src/main/java/org/kkumulkkum/server/external/service/fcm/FcmContent.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.external.enums;
+package org.kkumulkkum.server.external.service.fcm;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;
diff --git a/src/main/java/org/kkumulkkum/server/external/FcmService.java b/src/main/java/org/kkumulkkum/server/external/service/fcm/FcmService.java
similarity index 85%
rename from src/main/java/org/kkumulkkum/server/external/FcmService.java
rename to src/main/java/org/kkumulkkum/server/external/service/fcm/FcmService.java
index 2582b2d..f5e386c 100644
--- a/src/main/java/org/kkumulkkum/server/external/FcmService.java
+++ b/src/main/java/org/kkumulkkum/server/external/service/fcm/FcmService.java
@@ -1,11 +1,11 @@
-package org.kkumulkkum.server.external;
+package org.kkumulkkum.server.external.service.fcm;
 
 import com.google.firebase.messaging.*;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.kkumulkkum.server.exception.FirebaseException;
-import org.kkumulkkum.server.exception.code.FirebaseErrorCode;
-import org.kkumulkkum.server.external.dto.FcmMessageDto;
+import org.kkumulkkum.server.common.exception.FirebaseException;
+import org.kkumulkkum.server.common.exception.code.FirebaseErrorCode;
+import org.kkumulkkum.server.external.service.fcm.dto.FcmMessageDto;
 import org.springframework.scheduling.annotation.Async;
 import org.springframework.stereotype.Component;
 
diff --git a/src/main/java/org/kkumulkkum/server/external/dto/FcmMessageDto.java b/src/main/java/org/kkumulkkum/server/external/service/fcm/dto/FcmMessageDto.java
similarity index 77%
rename from src/main/java/org/kkumulkkum/server/external/dto/FcmMessageDto.java
rename to src/main/java/org/kkumulkkum/server/external/service/fcm/dto/FcmMessageDto.java
index 9e3fe21..bd28188 100644
--- a/src/main/java/org/kkumulkkum/server/external/dto/FcmMessageDto.java
+++ b/src/main/java/org/kkumulkkum/server/external/service/fcm/dto/FcmMessageDto.java
@@ -1,6 +1,6 @@
-package org.kkumulkkum.server.external.dto;
+package org.kkumulkkum.server.external.service.fcm.dto;
 
-import org.kkumulkkum.server.external.enums.FcmContent;
+import org.kkumulkkum.server.external.service.fcm.FcmContent;
 
 public record FcmMessageDto(
         String title,
diff --git a/src/main/java/org/kkumulkkum/server/auth/openfeign/kakao/KakaoFeignClient.java b/src/main/java/org/kkumulkkum/server/external/service/kakao/KakaoFeignClient.java
similarity index 87%
rename from src/main/java/org/kkumulkkum/server/auth/openfeign/kakao/KakaoFeignClient.java
rename to src/main/java/org/kkumulkkum/server/external/service/kakao/KakaoFeignClient.java
index 85c1bd8..a45765d 100644
--- a/src/main/java/org/kkumulkkum/server/auth/openfeign/kakao/KakaoFeignClient.java
+++ b/src/main/java/org/kkumulkkum/server/external/service/kakao/KakaoFeignClient.java
@@ -1,6 +1,6 @@
-package org.kkumulkkum.server.auth.openfeign.kakao;
+package org.kkumulkkum.server.external.service.kakao;
 
-import org.kkumulkkum.server.auth.openfeign.kakao.dto.KakaoUserDto;
+import org.kkumulkkum.server.external.service.kakao.dto.KakaoUserDto;
 import org.springframework.cloud.openfeign.FeignClient;
 import org.springframework.http.HttpHeaders;
 import org.springframework.web.bind.annotation.GetMapping;
diff --git a/src/main/java/org/kkumulkkum/server/external/service/kakao/dto/KakaoAccount.java b/src/main/java/org/kkumulkkum/server/external/service/kakao/dto/KakaoAccount.java
new file mode 100644
index 0000000..6dd9da7
--- /dev/null
+++ b/src/main/java/org/kkumulkkum/server/external/service/kakao/dto/KakaoAccount.java
@@ -0,0 +1,6 @@
+package org.kkumulkkum.server.external.service.kakao.dto;
+
+public record KakaoAccount(
+        String email
+) {
+}
diff --git a/src/main/java/org/kkumulkkum/server/auth/openfeign/kakao/dto/KakaoUserDto.java b/src/main/java/org/kkumulkkum/server/external/service/kakao/dto/KakaoUserDto.java
similarity index 82%
rename from src/main/java/org/kkumulkkum/server/auth/openfeign/kakao/dto/KakaoUserDto.java
rename to src/main/java/org/kkumulkkum/server/external/service/kakao/dto/KakaoUserDto.java
index 7ee0dff..a2aa318 100644
--- a/src/main/java/org/kkumulkkum/server/auth/openfeign/kakao/dto/KakaoUserDto.java
+++ b/src/main/java/org/kkumulkkum/server/external/service/kakao/dto/KakaoUserDto.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.auth.openfeign.kakao.dto;
+package org.kkumulkkum.server.external.service.kakao.dto;
 
 import com.fasterxml.jackson.databind.PropertyNamingStrategies;
 import com.fasterxml.jackson.databind.annotation.JsonNaming;
diff --git a/src/main/java/org/kkumulkkum/server/external/NaverService.java b/src/main/java/org/kkumulkkum/server/external/service/naver/NaverService.java
similarity index 90%
rename from src/main/java/org/kkumulkkum/server/external/NaverService.java
rename to src/main/java/org/kkumulkkum/server/external/service/naver/NaverService.java
index 61d6efc..a846fa2 100644
--- a/src/main/java/org/kkumulkkum/server/external/NaverService.java
+++ b/src/main/java/org/kkumulkkum/server/external/service/naver/NaverService.java
@@ -1,10 +1,10 @@
-package org.kkumulkkum.server.external;
+package org.kkumulkkum.server.external.service.naver;
 
-import org.kkumulkkum.server.exception.OpenApiException;
-import org.kkumulkkum.server.exception.code.OpenApiErrorCode;
-import org.kkumulkkum.server.external.dto.LocationDto;
-import org.kkumulkkum.server.external.dto.LocationsDto;
-import org.kkumulkkum.server.external.dto.NaverLocationResponse;
+import org.kkumulkkum.server.common.exception.OpenApiException;
+import org.kkumulkkum.server.common.exception.code.OpenApiErrorCode;
+import org.kkumulkkum.server.external.controller.naver.dto.LocationDto;
+import org.kkumulkkum.server.external.controller.naver.dto.LocationsDto;
+import org.kkumulkkum.server.external.service.naver.dto.NaverLocationResponse;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.http.HttpStatusCode;
 import org.springframework.stereotype.Service;
diff --git a/src/main/java/org/kkumulkkum/server/external/dto/NaverLocationResponse.java b/src/main/java/org/kkumulkkum/server/external/service/naver/dto/NaverLocationResponse.java
similarity index 89%
rename from src/main/java/org/kkumulkkum/server/external/dto/NaverLocationResponse.java
rename to src/main/java/org/kkumulkkum/server/external/service/naver/dto/NaverLocationResponse.java
index 840f716..8eda910 100644
--- a/src/main/java/org/kkumulkkum/server/external/dto/NaverLocationResponse.java
+++ b/src/main/java/org/kkumulkkum/server/external/service/naver/dto/NaverLocationResponse.java
@@ -1,4 +1,4 @@
-package org.kkumulkkum.server.external.dto;
+package org.kkumulkkum.server.external.service.naver.dto;
 
 import lombok.Getter;
 import lombok.NoArgsConstructor;
diff --git a/src/main/java/org/kkumulkkum/server/external/S3Service.java b/src/main/java/org/kkumulkkum/server/external/service/s3/S3Service.java
similarity index 93%
rename from src/main/java/org/kkumulkkum/server/external/S3Service.java
rename to src/main/java/org/kkumulkkum/server/external/service/s3/S3Service.java
index 66e9b79..ee5a3dd 100644
--- a/src/main/java/org/kkumulkkum/server/external/S3Service.java
+++ b/src/main/java/org/kkumulkkum/server/external/service/s3/S3Service.java
@@ -1,8 +1,8 @@
-package org.kkumulkkum.server.external;
+package org.kkumulkkum.server.external.service.s3;
 
-import org.kkumulkkum.server.config.AwsConfig;
-import org.kkumulkkum.server.exception.AwsException;
-import org.kkumulkkum.server.exception.code.AwsErrorCode;
+import org.kkumulkkum.server.external.config.AwsConfig;
+import org.kkumulkkum.server.common.exception.AwsException;
+import org.kkumulkkum.server.common.exception.code.AwsErrorCode;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;
 import org.springframework.web.multipart.MultipartFile;
diff --git a/src/main/resources/discord-appender.xml b/src/main/resources/discord-appender.xml
index b95e152..525fd89 100644
--- a/src/main/resources/discord-appender.xml
+++ b/src/main/resources/discord-appender.xml
@@ -1,5 +1,5 @@
 <included>
-    <appender name="DISCORD" class="org.kkumulkkum.server.log.discord.DiscordAppender">
+    <appender name="DISCORD" class="org.kkumulkkum.server.common.log.discord.DiscordAppender">
         <discordWebhookUrl>${DISCORD_WEBHOOK_URI}</discordWebhookUrl>
         <username>개 큰 에러 나는 꾸물꿈</username>
         <avatarUrl>https://github.com/user-attachments/assets/452211e9-0c88-41e9-a49c-42c3b099a197</avatarUrl>