diff --git a/lib/data/repositories/schedule_repository_impl.dart b/lib/data/repositories/schedule_repository_impl.dart
index dcb3419..b373ff1 100644
--- a/lib/data/repositories/schedule_repository_impl.dart
+++ b/lib/data/repositories/schedule_repository_impl.dart
@@ -23,8 +23,38 @@ class ScheduleRepositoryImpl implements ScheduleRepository {
   }
 
   @override
-  Stream<ScheduleEntity> getScheduleById(int id) {
-    throw UnimplementedError();
+  Stream<ScheduleEntity> getScheduleById(int id) async* {
+    try {
+      final streamController = StreamController<ScheduleEntity>();
+      final localScheduleEntity = scheduleLocalDataSource.getScheduleById(id);
+      final remoteScheduleEntity = scheduleRemoteDataSource.getScheduleById(id);
+
+      bool isFirstResponse = true;
+
+      localScheduleEntity.then((localScheduleEntity) {
+        if (isFirstResponse) {
+          isFirstResponse = false;
+          streamController.add(localScheduleEntity);
+        }
+      });
+
+      remoteScheduleEntity.then((remoteScheduleEntity) async {
+        if (isFirstResponse) {
+          isFirstResponse = false;
+          streamController.add(remoteScheduleEntity);
+        } else {
+          if (await localScheduleEntity != remoteScheduleEntity) {
+            streamController.add(remoteScheduleEntity);
+            await scheduleLocalDataSource.updateSchedule(remoteScheduleEntity);
+          }
+        }
+      });
+
+      await Future.wait([localScheduleEntity, remoteScheduleEntity]);
+      yield* streamController.stream;
+    } catch (e) {
+      rethrow;
+    }
   }
 
   @override