diff --git a/front/lib/app/config/routes.dart b/front/lib/app/config/routes.dart
index c2a7f1a..465e6ed 100644
--- a/front/lib/app/config/routes.dart
+++ b/front/lib/app/config/routes.dart
@@ -7,11 +7,9 @@ import 'package:front/features/team/presentation/pages/team/team_create.dart';
 import 'package:front/features/team/presentation/pages/team/team_datail.dart';
 import 'package:front/features/team/presentation/pages/team/teams_list.dart';
 import 'package:front/features/user/presentation/component/change_info_list.dart';
-import 'package:front/features/user/presentation/screens/email_singin.dart';
-import 'package:front/features/user/presentation/screens/login.dart';
-import 'package:front/features/user/presentation/screens/main_screen.dart';
+
 import 'package:front/features/user/presentation/screens/my_info_screen.dart';
-import 'package:front/features/user/presentation/screens/signin.dart';
+
 import 'package:front/features/user/presentation/screens/social_login_info_screen.dart';
 import 'package:go_router/go_router.dart';
 
@@ -22,21 +20,8 @@ final router = GoRouter(initialLocation: '/', routes: [
       name: 'example',
       builder: (context, state) => const FormDemoScreen2(),
     ),
-    GoRoute(
-      path: 'login',
-      name: 'login',
-      builder: (context, state) => const LoginScreen(),
-    ),
-    GoRoute(
-      path: 'signup',
-      name: 'signup',
-      builder: (context, state) => const SignInScreen(),
-    ),
-    GoRoute(
-      path: 'emailSignup',
-      name: 'emailSignup',
-      builder: (context, state) => const EmailSignInScreen(),
-    ),
+
+    
     GoRoute(
       path: 'teamsList',
       name: 'teamsList',
@@ -69,11 +54,7 @@ final router = GoRouter(initialLocation: '/', routes: [
       name: 'projectUpdate',
       builder: (context, state) => ProjectUpdateScreen(),
     ),
-    GoRoute(
-      path: 'main',
-      name: 'main',
-      builder: (context, state) => const MainScreen(),
-    ),
+   
     ShellRoute(
         builder: (context, state, child) => ScaffoldWithMyInfo(child: child),
         routes: [
diff --git a/front/lib/core/network_handling/exceptions/exception_handler.dart b/front/lib/core/network_handling/exceptions/exception_handler.dart
index 8b6633c..cdf8b41 100644
--- a/front/lib/core/network_handling/exceptions/exception_handler.dart
+++ b/front/lib/core/network_handling/exceptions/exception_handler.dart
@@ -1,10 +1,9 @@
-
 import 'package:front/core/network_handling/exceptions/custom_exception.dart';
 
 class ExceptionHandler {
   static showToast(Exception e) {
     if (Exception is CustomException) {
-      final exception = e as CustomException;
+      var exception = e as CustomException;
       // ToastService.show(NormalToast(message: '${exception.message}'));
     } else {
       // ToastService.show(NormalToast(message: '$e'));
diff --git a/front/lib/features/project/presentaion/component/project_manager_selector.dart b/front/lib/features/project/presentaion/component/project_manager_selector.dart
index 6cbef0c..4dc6173 100644
--- a/front/lib/features/project/presentaion/component/project_manager_selector.dart
+++ b/front/lib/features/project/presentaion/component/project_manager_selector.dart
@@ -1,5 +1,5 @@
 import 'package:flutter/material.dart';
-import 'package:front/features/user/models/user.dart';
+import 'package:front/features/user/data/models/user.dart';
 import 'package:front/features/team/presentation/pages/team/widgets/dialog.dart';
 
 typedef VoidCallback = void Function(UserModel user);
@@ -37,7 +37,7 @@ class ProjectManagerSelector extends StatelessWidget {
           backgroundColor: Colors.grey[300],
           child: const Text('⭐'),
         ),
-        Text(administrator.nickname ?? ''),
+        Text(administrator.nickName ?? ''),
       ],
     );
   }
@@ -87,7 +87,7 @@ class ProjectManagerSelector extends StatelessWidget {
             const SizedBox(
               width: 5,
             ),
-            Text(user.nickname ?? ''),
+            Text(user.nickName ?? ''),
           ],
         ),
       ),
@@ -104,7 +104,7 @@ class ProjectManagerSelector extends StatelessWidget {
       child: Column(
         mainAxisSize: MainAxisSize.min,
         children: [
-          Text('프로젝트 담당자 ${user.nickname}'),
+          Text('프로젝트 담당자 ${user.nickName}'),
           const Text('으로 변경하시겠습니까?'),
           const SizedBox(height: 16),
           Row(
@@ -114,7 +114,7 @@ class ProjectManagerSelector extends StatelessWidget {
                 onPressed: () {
                   Navigator.pop(context);
                   onChanged(user);
-                  _showConfirmationDialog(user.nickname ?? '', context);
+                  _showConfirmationDialog(user.nickName ?? '', context);
                 },
                 child: const Text('확인'),
               ),
diff --git a/front/lib/features/project/presentaion/screen/project_creation.dart b/front/lib/features/project/presentaion/screen/project_creation.dart
index 40bca81..c910450 100644
--- a/front/lib/features/project/presentaion/screen/project_creation.dart
+++ b/front/lib/features/project/presentaion/screen/project_creation.dart
@@ -1,7 +1,7 @@
 // ignore_for_file: public_member_api_docs, sort_constructors_first
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
-import 'package:front/features/user/models/user.dart';
+import 'package:front/features/user/data/models/user.dart';
 import 'package:front/features/project/data/models/project_request.dart';
 import 'package:front/features/project/presentaion/component/project_from.dart';
 import 'package:front/features/project/presentaion/component/project_manager_selector.dart';
@@ -54,13 +54,13 @@ class _BodyState extends ConsumerState<_Body> {
   final _formKey = GlobalKey<CustomFormState>();
   late CustomFormState? currentState;
   var manager =
-      UserModel(id: 1, nickname: 'user1', email: 'email', type: 'type');
+      UserModel(id: 1, nickName: 'user1', email: 'email', type: 'type');
   final List<UserModel> teamMembers = [
-    UserModel(id: 1, email: 'email', nickname: 'user1', type: 'MEMBER'),
-    UserModel(id: 1, email: 'email', nickname: 'user2', type: 'MEMBER'),
-    UserModel(id: 1, email: 'email', nickname: 'user3', type: 'MEMBER'),
-    UserModel(id: 1, email: 'email', nickname: 'user4', type: 'MEMBER'),
-    UserModel(id: 1, email: 'email', nickname: 'user5', type: 'MEMBER'),
+    UserModel(id: 1, email: 'email', nickName: 'user1', type: 'MEMBER'),
+    UserModel(id: 1, email: 'email', nickName: 'user2', type: 'MEMBER'),
+    UserModel(id: 1, email: 'email', nickName: 'user3', type: 'MEMBER'),
+    UserModel(id: 1, email: 'email', nickName: 'user4', type: 'MEMBER'),
+    UserModel(id: 1, email: 'email', nickName: 'user5', type: 'MEMBER'),
   ];
 
   @override
diff --git a/front/lib/features/project/presentaion/screen/project_update.dart b/front/lib/features/project/presentaion/screen/project_update.dart
index 185ef13..dc317f4 100644
--- a/front/lib/features/project/presentaion/screen/project_update.dart
+++ b/front/lib/features/project/presentaion/screen/project_update.dart
@@ -3,7 +3,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 
 import 'package:front/core/const/enum.dart';
-import 'package:front/features/user/models/user.dart';
+import 'package:front/features/user/data/models/user.dart';
 import 'package:front/features/project/data/models/project_request.dart';
 import 'package:front/features/project/entities/project.dart';
 import 'package:front/features/project/presentaion/component/project_from.dart';
@@ -66,13 +66,13 @@ class _BodyState extends ConsumerState<_Body> {
   final _formKey = GlobalKey<CustomFormState>();
   late CustomFormState? currentState;
   var manager =
-      UserModel(id: 1, nickname: 'user1', email: 'email', type: 'type');
+      UserModel(id: 1, nickName: 'user1', email: 'email', type: 'type');
   final List<UserModel> teamMembers = [
-    UserModel(id: 1, email: 'email', nickname: 'user1', type: 'MEMBER'),
-    UserModel(id: 1, email: 'email', nickname: 'user2', type: 'MEMBER'),
-    UserModel(id: 1, email: 'email', nickname: 'user3', type: 'MEMBER'),
-    UserModel(id: 1, email: 'email', nickname: 'user4', type: 'MEMBER'),
-    UserModel(id: 1, email: 'email', nickname: 'user5', type: 'MEMBER'),
+    UserModel(id: 1, email: 'email', nickName: 'user1', type: 'MEMBER'),
+    UserModel(id: 1, email: 'email', nickName: 'user2', type: 'MEMBER'),
+    UserModel(id: 1, email: 'email', nickName: 'user3', type: 'MEMBER'),
+    UserModel(id: 1, email: 'email', nickName: 'user4', type: 'MEMBER'),
+    UserModel(id: 1, email: 'email', nickName: 'user5', type: 'MEMBER'),
   ];
 
   @override
diff --git a/front/lib/features/user/data/models/user.dart b/front/lib/features/user/data/models/user.dart
index 0ff9ccc..94ba70f 100644
--- a/front/lib/features/user/data/models/user.dart
+++ b/front/lib/features/user/data/models/user.dart
@@ -23,7 +23,7 @@ class UserModel with _$UserModel {
       id: user.id,
       email: user.email,
       nickName: user.nickName,
-      imageUrl: user.imageUrl,
+      imageUrl: user.imageUrl, type: user.type,
     );
   }
 }
diff --git a/front/lib/features/user/presentation/screens/social_login_info_screen.dart b/front/lib/features/user/presentation/screens/social_login_info_screen.dart
index ce42042..b101e59 100644
--- a/front/lib/features/user/presentation/screens/social_login_info_screen.dart
+++ b/front/lib/features/user/presentation/screens/social_login_info_screen.dart
@@ -12,13 +12,13 @@ class SocialLoginInfoScreen extends StatelessWidget {
             onPressed: () {
               context.push('/changeMyInfoList');
             },
-            child: Text('⚙ 개인정보 수정')),
-        Expanded(
+            child: const Text('⚙ 개인정보 수정')),
+        const Expanded(
           child: SizedBox(),
         ),
         Padding(
           padding: const EdgeInsets.all(80.0),
-          child: TextButton(onPressed: () {}, child: Text('로그아웃')),
+          child: TextButton(onPressed: () {}, child: const Text('로그아웃')),
         )
       ],
     );
diff --git a/front/lib/features/user/usecase/auto_sign_in_check_usecase.dart b/front/lib/features/user/usecase/auto_sign_in_check_usecase.dart
index e69de29..8857bcc 100644
--- a/front/lib/features/user/usecase/auto_sign_in_check_usecase.dart
+++ b/front/lib/features/user/usecase/auto_sign_in_check_usecase.dart
@@ -0,0 +1,11 @@
+import 'package:front/core/utils/result.dart';
+import 'package:front/features/user/repositories/user_repositories.dart';
+
+final class AutoSignInCheckUseCase {
+  const AutoSignInCheckUseCase(this._userRepository);
+  final UserRepository _userRepository;
+
+  Future<Result<bool>> call() async {
+    return _userRepository.autoSignInCheck();
+  }
+}
\ No newline at end of file
diff --git a/front/lib/features/user/usecase/set_auto_sign_in_true.dart b/front/lib/features/user/usecase/set_auto_sign_in_true.dart
index 1c90d58..aaf3f2d 100644
--- a/front/lib/features/user/usecase/set_auto_sign_in_true.dart
+++ b/front/lib/features/user/usecase/set_auto_sign_in_true.dart
@@ -1,11 +1,11 @@
 import 'package:front/core/utils/result.dart';
 import 'package:front/features/user/repositories/user_repositories.dart';
 
-final class SetAutoSignInFalse {
-  const SetAutoSignInFalse(this._userRepository);
+final class SetAutoSignInTrue {
+  const SetAutoSignInTrue(this._userRepository);
   final UserRepository _userRepository;
 
   Future<Result> call() async {
-    return _userRepository.setAutoSignInFalse();
+    return _userRepository.setAutoSignInTrue();
   }
 }
diff --git a/front/lib/features/user/usecase/sign_out_usecase.dart b/front/lib/features/user/usecase/sign_out_usecase.dart
index e69de29..54a5a1b 100644
--- a/front/lib/features/user/usecase/sign_out_usecase.dart
+++ b/front/lib/features/user/usecase/sign_out_usecase.dart
@@ -0,0 +1,12 @@
+import 'package:front/core/utils/api_response.dart';
+import 'package:front/core/utils/result.dart';
+import 'package:front/features/user/repositories/user_repositories.dart';
+
+final class SignOutUseCase {
+  const SignOutUseCase(this._userRepository);
+  final UserRepository _userRepository;
+
+  Future<Result<ApiResponse>> call() async {
+    return _userRepository.signOut();
+  }
+}
\ No newline at end of file
diff --git a/front/lib/main/main.dart b/front/lib/main/main.dart
index 327413a..9fb194d 100644
--- a/front/lib/main/main.dart
+++ b/front/lib/main/main.dart
@@ -32,7 +32,6 @@ class _EagerInitialization extends ConsumerWidget {
 
   @override
   Widget build(BuildContext context, WidgetRef ref) {
-    ref.watch(sharedPrefProvider);
     ref.watch(secureStorageProvider);
 
     return child;