diff --git a/cmd_backend/src/main/java/com/gdsc/cmd/domain/auth/service/StudentSignUpService.java b/cmd_backend/src/main/java/com/gdsc/cmd/domain/auth/service/StudentSignUpService.java
index a76311f..795c948 100644
--- a/cmd_backend/src/main/java/com/gdsc/cmd/domain/auth/service/StudentSignUpService.java
+++ b/cmd_backend/src/main/java/com/gdsc/cmd/domain/auth/service/StudentSignUpService.java
@@ -23,7 +23,6 @@ public class StudentSignUpService {
     private final PasswordEncoder passwordEncoder;
     @Transactional
     public TokenResponse execute(SignupRequest request){
-
         // 처음 아이디 만들 때는 비활성화
         userFacade.checkUserExists(request.getAccountId());
 
@@ -41,8 +40,6 @@ public TokenResponse execute(SignupRequest request){
                             .build()
                     );
 
-
-
         return jwtTokenProvider.createToken(request.getAccountId());
 
     }
diff --git a/cmd_backend/src/main/java/com/gdsc/cmd/domain/auth/service/TeacherSignUpService.java b/cmd_backend/src/main/java/com/gdsc/cmd/domain/auth/service/TeacherSignUpService.java
index 2882346..1806306 100644
--- a/cmd_backend/src/main/java/com/gdsc/cmd/domain/auth/service/TeacherSignUpService.java
+++ b/cmd_backend/src/main/java/com/gdsc/cmd/domain/auth/service/TeacherSignUpService.java
@@ -22,7 +22,6 @@ public class TeacherSignUpService {
         private final PasswordEncoder passwordEncoder;
         @Transactional
         public TokenResponse execute(SignupRequest request){
-
             // 처음 아이디 만들때는 비활성화
             userFacade.checkUserExists(request.getAccountId());
 
@@ -40,8 +39,6 @@ public TokenResponse execute(SignupRequest request){
                             .build()
             );
 
-
-
             return jwtTokenProvider.createToken(request.getAccountId());
 
         }
diff --git a/cmd_backend/src/main/java/com/gdsc/cmd/domain/notification/controller/NotificationController.java b/cmd_backend/src/main/java/com/gdsc/cmd/domain/notification/controller/NotificationController.java
index adef899..8d548ca 100644
--- a/cmd_backend/src/main/java/com/gdsc/cmd/domain/notification/controller/NotificationController.java
+++ b/cmd_backend/src/main/java/com/gdsc/cmd/domain/notification/controller/NotificationController.java
@@ -20,9 +20,7 @@
 @RequestMapping("/notification")
 @RequiredArgsConstructor
 public class NotificationController {
-
     private final NotificationRepositroy notificationRepositroy;
-
     private final NotificationCreateService notificationCreateService;
     private final NotificationReadService notificationReadService;
     private final NotificationUpdateService notificationUpdateService;
diff --git a/cmd_backend/src/main/java/com/gdsc/cmd/domain/notification/domain/type/ExceptionCode.java b/cmd_backend/src/main/java/com/gdsc/cmd/domain/notification/domain/type/ExceptionCode.java
index bee9b38..620f034 100644
--- a/cmd_backend/src/main/java/com/gdsc/cmd/domain/notification/domain/type/ExceptionCode.java
+++ b/cmd_backend/src/main/java/com/gdsc/cmd/domain/notification/domain/type/ExceptionCode.java
@@ -3,7 +3,6 @@
 import lombok.Getter;
 
 public enum ExceptionCode {
-
     NEED_NOT_FOUND(404,"need not found");
 
     @Getter