diff --git a/app/src/main/java/com/example/sprout/Sprout.java b/app/src/main/java/com/example/sprout/Sprout.java
index d3f028c..48089d4 100644
--- a/app/src/main/java/com/example/sprout/Sprout.java
+++ b/app/src/main/java/com/example/sprout/Sprout.java
@@ -12,10 +12,6 @@
 import com.example.sprout.battles.BattlesConnection;
 import com.example.sprout.battles.Team;
 import com.example.sprout.battles.UpdateActor;
-import com.example.sprout.refactor.Constant;
-import com.example.sprout.refactor.api.SproutService;
-import com.example.sprout.refactor.repository.RegistrationRepository;
-import com.example.sprout.refactor.repository.RoomRepository;
 import com.example.sprout.rooms.RoomsConnection;
 
 import java.util.HashMap;
@@ -28,10 +24,6 @@
 import framework.model3D.Position3D;
 import framework.model3D.Universe;
 import java3d.Vector3d;
-import okhttp3.OkHttpClient;
-import okhttp3.logging.HttpLoggingInterceptor;
-import retrofit2.Retrofit;
-import retrofit2.converter.gson.GsonConverterFactory;
 
 /**
  * Sprout APplication class
@@ -41,10 +33,6 @@
 public class Sprout extends Application {
 
     private static Sprout instance = null;
-    private OkHttpClient okHttpClient = null;
-    private SproutService sproutService = null;
-    private RegistrationRepository registrationRepository = null;
-    private RoomRepository roomRepository = null;
 
     @Override
     public void onCreate() {
@@ -56,46 +44,6 @@
         return instance;
     }
 
-    public OkHttpClient getOkHttpClient() {
-        if (okHttpClient == null) {
-            if (Constant.DEVELOP) {
-                HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
-                interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
-                okHttpClient = new OkHttpClient.Builder().addInterceptor(interceptor).build();
-            } else {
-                okHttpClient = new OkHttpClient.Builder().build();
-            }
-        }
-        return okHttpClient;
-    }
-
-    public SproutService getSproutService() {
-        if (sproutService == null) {
-            sproutService = new Retrofit
-                    .Builder()
-                    .baseUrl("http://nitta-lab-www2.is.konan-u.ac.jp:8080/SproutServer/")
-                    .client(getOkHttpClient())
-                    .addConverterFactory(GsonConverterFactory.create())
-                    .build()
-                    .create(SproutService.class);
-        }
-        return sproutService;
-    }
-
-    public RegistrationRepository getRegistrationRepository() {
-        if (registrationRepository == null) {
-            registrationRepository = new RegistrationRepository(getSproutService());
-        }
-        return registrationRepository;
-    }
-
-    public RoomRepository getRoomRepository() {
-        if (roomRepository == null) {
-            roomRepository = new RoomRepository(getSproutService());
-        }
-        return roomRepository;
-    }
-
     private RoomsConnection roomsConnection = null;
     private BattlesConnection battlesConnection = null;
     private AccountsConnection accountsConnection = null;