diff --git a/app/src/main/java/com/example/sprout/refactor/repository/RoomRepository.java b/app/src/main/java/com/example/sprout/refactor/repository/RoomRepository.java
index 9d567b4..7df09c1 100644
--- a/app/src/main/java/com/example/sprout/refactor/repository/RoomRepository.java
+++ b/app/src/main/java/com/example/sprout/refactor/repository/RoomRepository.java
@@ -18,13 +18,10 @@
 public class RoomRepository extends Repository {
 
     private SproutService sproutService = null;
-    private Observable<Rooms> roomListObservable = new Observable<>();
-    private Observable<RoomResponse> enterRoomObservable = new Observable<>();
-    private Observable<RoomResponse> createRoomObservable = new Observable<>();
     private Observable<Room> roomObservable = new Observable<>();
-    private Observable<RoomResponse> roomUpdateStateObservable = new Observable<>();
-    private Observable<Void> exitRoomObservable = new Observable<>();
-    private Observable<RoomResponse> enterRoomWithKeyObservable = new Observable<>();
+    private Observable<Rooms> roomsObservable = new Observable<>();
+    private Observable<RoomResponse> roomResponseObservable = new Observable<>();
+    private Observable<Void> voidObservable = new Observable<>();
 
     public RoomRepository(SproutService sproutService) {
         this.sproutService = sproutService;
@@ -36,15 +33,15 @@
             @Override
             public void onResponse(Call<Rooms> call, Response<Rooms> response) {
                 if (response.isSuccessful()) {
-                    roomListObservable.notifyObservers(response.body());
+                    roomsObservable.notifyObservers(response.body());
                 } else {
-                    roomListObservable.notifyError(new Throwable("error"));
+                    roomsObservable.notifyError(new Throwable("error"));
                 }
             }
 
             @Override
             public void onFailure(Call<Rooms> call, Throwable t) {
-                roomListObservable.notifyError(t);
+                roomsObservable.notifyError(t);
             }
         });
     }
@@ -55,15 +52,15 @@
             @Override
             public void onResponse(Call<RoomResponse> call, Response<RoomResponse> response) {
                 if (response.isSuccessful()) {
-                    enterRoomObservable.notifyObservers(response.body());
+                    roomResponseObservable.notifyObservers(response.body());
                 } else {
-                    enterRoomObservable.notifyError(new Throwable("error"));
+                    roomResponseObservable.notifyError(new Throwable("error"));
                 }
             }
 
             @Override
             public void onFailure(Call<RoomResponse> call, Throwable t) {
-                enterRoomObservable.notifyError(t);
+                roomResponseObservable.notifyError(t);
             }
         });
     }
@@ -74,15 +71,15 @@
             @Override
             public void onResponse(Call<RoomResponse> call, Response<RoomResponse> response) {
                 if (response.isSuccessful()) {
-                    createRoomObservable.notifyObservers(response.body());
+                    roomResponseObservable.notifyObservers(response.body());
                 } else {
-                    createRoomObservable.notifyError(new Throwable("error"));
+                    roomResponseObservable.notifyError(new Throwable("error"));
                 }
             }
 
             @Override
             public void onFailure(Call<RoomResponse> call, Throwable t) {
-                createRoomObservable.notifyError(t);
+                roomResponseObservable.notifyError(t);
             }
         });
     }
@@ -112,15 +109,15 @@
             @Override
             public void onResponse(Call<RoomResponse> call, Response<RoomResponse> response) {
                 if (response.isSuccessful()) {
-                    roomUpdateStateObservable.notifyObservers(response.body());
+                    roomResponseObservable.notifyObservers(response.body());
                 } else {
-                    roomUpdateStateObservable.notifyError(new Throwable("error"));
+                    roomResponseObservable.notifyError(new Throwable("error"));
                 }
             }
 
             @Override
             public void onFailure(Call<RoomResponse> call, Throwable t) {
-                roomUpdateStateObservable.notifyError(t);
+                roomResponseObservable.notifyError(t);
             }
         });
     }
@@ -131,15 +128,15 @@
             @Override
             public void onResponse(Call<Void> call, Response<Void> response) {
                 if (response.isSuccessful()) {
-                    exitRoomObservable.notifyObservers(response.body());
+                    voidObservable.notifyObservers(response.body());
                 } else {
-                    exitRoomObservable.notifyError(new Throwable("error"));
+                    voidObservable.notifyError(new Throwable("error"));
                 }
             }
 
             @Override
             public void onFailure(Call<Void> call, Throwable t) {
-                exitRoomObservable.notifyError(t);
+                voidObservable.notifyError(t);
             }
         });
     }
@@ -150,44 +147,34 @@
             @Override
             public void onResponse(Call<RoomResponse> call, Response<RoomResponse> response) {
                 if (response.isSuccessful()) {
-                    enterRoomWithKeyObservable.notifyObservers(response.body());
+                    roomResponseObservable.notifyObservers(response.body());
                 } else {
-                    enterRoomWithKeyObservable.notifyError(new Throwable("error"));
+                    roomResponseObservable.notifyError(new Throwable("error"));
                 }
             }
 
             @Override
             public void onFailure(Call<RoomResponse> call, Throwable t) {
-                enterRoomWithKeyObservable.notifyError(t);
+                roomResponseObservable.notifyError(t);
             }
         });
     }
 
-    public Observable<Rooms> getRoomListObservable() {
-        return roomListObservable;
-    }
-
-    public Observable<RoomResponse> getEnterRoomObservable() {
-        return enterRoomObservable;
-    }
-
-    public Observable<RoomResponse> getCreateRoomObservable() {
-        return createRoomObservable;
-    }
-
     public Observable<Room> getRoomObservable() {
         return roomObservable;
     }
 
-    public Observable<RoomResponse> getRoomUpdateStateObservable() {
-        return roomUpdateStateObservable;
+    public Observable<Rooms> getRoomsObservable() {
+        return roomsObservable;
     }
 
-    public Observable<RoomResponse> getEnterRoomWithKeyObservable() {
-        return enterRoomWithKeyObservable;
+    public Observable<RoomResponse> getRoomResponseObservable() {
+        return roomResponseObservable;
     }
 
-    public Observable<Void> getExitRoomObservable() {
-        return exitRoomObservable;
+    public Observable<Void> getVoidObservable() {
+        return voidObservable;
     }
+
+
 }
diff --git a/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomCreateViewModel.java b/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomCreateViewModel.java
index 78ce455..3e9f200 100644
--- a/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomCreateViewModel.java
+++ b/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomCreateViewModel.java
@@ -48,13 +48,13 @@
     @Override
     public void onResume() {
         super.onResume();
-        roomRepository.getCreateRoomObservable().addObserver(observer);
+        roomRepository.getRoomResponseObservable().addObserver(observer);
     }
 
     @Override
     public void onPause() {
         super.onPause();
-        roomRepository.getCreateRoomObservable().removeObserver(observer);
+        roomRepository.getRoomResponseObservable().removeObserver(observer);
     }
 
     public void onClickCreate(String userName, String pass) {
diff --git a/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomInputKeyViewModel.java b/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomInputKeyViewModel.java
index 672b702..f65df84 100644
--- a/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomInputKeyViewModel.java
+++ b/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomInputKeyViewModel.java
@@ -45,13 +45,13 @@
     @Override
     public void onResume() {
         super.onResume();
-        roomRepository.getEnterRoomWithKeyObservable().addObserver(observer);
+        roomRepository.getRoomResponseObservable().addObserver(observer);
     }
 
     @Override
     public void onPause() {
         super.onPause();
-        roomRepository.getEnterRoomWithKeyObservable().removeObserver(observer);
+        roomRepository.getRoomResponseObservable().removeObserver(observer);
     }
 
     public void onClickEnter(String pass) {
diff --git a/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomListViewModel.java b/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomListViewModel.java
index 6184f4f..15fd32c 100644
--- a/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomListViewModel.java
+++ b/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomListViewModel.java
@@ -84,16 +84,16 @@
     @Override
     public void onResume() {
         super.onResume();
-        roomRepository.getRoomListObservable().addObserver(roomListObserver);
-        roomRepository.getEnterRoomObservable().addObserver(enterRoomObserver);
+        roomRepository.getRoomsObservable().addObserver(roomListObserver);
+        roomRepository.getRoomResponseObservable().addObserver(enterRoomObserver);
         roomRepository.getRooms();
     }
 
     @Override
     public void onPause() {
         super.onPause();
-        roomRepository.getRoomListObservable().removeObserver(roomListObserver);
-        roomRepository.getEnterRoomObservable().removeObserver(enterRoomObserver);
+        roomRepository.getRoomsObservable().removeObserver(roomListObserver);
+        roomRepository.getRoomResponseObservable().removeObserver(enterRoomObserver);
     }
 
     public void onClickRefresh() {
diff --git a/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomMainViewModel.java b/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomMainViewModel.java
index 13e7089..bca0482 100644
--- a/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomMainViewModel.java
+++ b/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomMainViewModel.java
@@ -80,16 +80,16 @@
     public void onResume() {
         super.onResume();
         roomRepository.getRoomObservable().addObserver(roomObserver);
-        roomRepository.getRoomUpdateStateObservable().addObserver(updateRoomStateObserver);
-        roomRepository.getExitRoomObservable().addObserver(exitRoomObserver);
+        roomRepository.getRoomResponseObservable().addObserver(updateRoomStateObserver);
+        roomRepository.getVoidObservable().addObserver(exitRoomObserver);
     }
 
     @Override
     public void onPause() {
         super.onPause();
         roomRepository.getRoomObservable().removeObserver(roomObserver);
-        roomRepository.getRoomUpdateStateObservable().removeObserver(updateRoomStateObserver);
-        roomRepository.getExitRoomObservable().removeObserver(exitRoomObserver);
+        roomRepository.getRoomResponseObservable().removeObserver(updateRoomStateObserver);
+        roomRepository.getVoidObservable().removeObserver(exitRoomObserver);
     }
 
     public void update() {