diff --git a/app/src/main/java/com/example/sprout/refactor/model/ModelLocator.java b/app/src/main/java/com/example/sprout/refactor/model/ModelLocator.java
index 2fefd34..0dbbd25 100644
--- a/app/src/main/java/com/example/sprout/refactor/model/ModelLocator.java
+++ b/app/src/main/java/com/example/sprout/refactor/model/ModelLocator.java
@@ -23,6 +23,8 @@
 
     // Modelを管理するクラス群
     private RegistrationModel registrationModel = new RegistrationModel(this.registrationRepository);
+    private RoomsModel roomsModel = new RoomsModel(this.roomRepository);
+    private RoomResponseModel roomResponseModel = new RoomResponseModel(this.roomRepository);
 
     private ModelLocator() {
     }
@@ -61,4 +63,12 @@
     public RegistrationModel getRegistrationModel() {
         return registrationModel;
     }
+
+    public RoomsModel getRoomsModel() {
+        return roomsModel;
+    }
+
+    public RoomResponseModel getRoomResponseModel() {
+        return roomResponseModel;
+    }
 }
diff --git a/app/src/main/java/com/example/sprout/refactor/model/RoomResponseModel.java b/app/src/main/java/com/example/sprout/refactor/model/RoomResponseModel.java
new file mode 100644
index 0000000..1f72130
--- /dev/null
+++ b/app/src/main/java/com/example/sprout/refactor/model/RoomResponseModel.java
@@ -0,0 +1,44 @@
+package com.example.sprout.refactor.model;
+
+import com.example.sprout.refactor.model.entity.RoomResponse;
+import com.example.sprout.refactor.notification.Observable;
+import com.example.sprout.refactor.notification.Observer;
+import com.example.sprout.refactor.repository.RoomRepository;
+import com.example.sprout.refactor.util.PreferenceUtil;
+
+/**
+ * Created by matsumoto_k on 2017/12/22.
+ */
+
+public class RoomResponseModel {
+
+    private RoomRepository roomRepository = null;
+    private Observable<RoomResponse> roomResponseObservable = new Observable<>();
+
+    public RoomResponseModel(RoomRepository roomRepository) {
+        this.roomRepository = roomRepository;
+
+        Observer<RoomResponse> roomResponseObserver = new Observer<RoomResponse>() {
+            @Override
+            public void notify(RoomResponse roomResponse) {
+                PreferenceUtil.getInstance().saveInt(PreferenceUtil.Key.ROOM_ID, roomResponse.getRoom().getRoomId());
+                PreferenceUtil.getInstance().saveInt(PreferenceUtil.Key.MEMBER_ID, roomResponse.getMemberId());
+                roomResponseObservable.notifyObservers(roomResponse);
+            }
+
+            @Override
+            public void error(Throwable throwable) {
+                roomResponseObservable.notifyError(throwable);
+            }
+        };
+        this.roomRepository.getRoomResponseObservable().addObserver(roomResponseObserver);
+    }
+
+    public void enterRoom(int roomId, int userId) {
+        roomRepository.enterRoom(roomId, userId);
+    }
+
+    public Observable<RoomResponse> getRoomResponseObservable() {
+        return roomResponseObservable;
+    }
+}
diff --git a/app/src/main/java/com/example/sprout/refactor/model/RoomsModel.java b/app/src/main/java/com/example/sprout/refactor/model/RoomsModel.java
new file mode 100644
index 0000000..1820a75
--- /dev/null
+++ b/app/src/main/java/com/example/sprout/refactor/model/RoomsModel.java
@@ -0,0 +1,43 @@
+package com.example.sprout.refactor.model;
+
+import com.example.sprout.refactor.model.entity.Rooms;
+import com.example.sprout.refactor.notification.Observable;
+import com.example.sprout.refactor.notification.Observer;
+import com.example.sprout.refactor.repository.RoomRepository;
+
+/**
+ * Created by matsumoto_k on 2017/12/22.
+ */
+
+public class RoomsModel {
+
+    private RoomRepository roomRepository = null;
+    private Observable<Rooms> roomsObservable = new Observable<>();
+
+    public RoomsModel(RoomRepository roomRepository) {
+        this.roomRepository = roomRepository;
+        Observer<Rooms> roomsObserver = new Observer<Rooms>() {
+            @Override
+            public void notify(Rooms rooms) {
+                roomsObservable.notifyObservers(rooms);
+            }
+
+            @Override
+            public void error(Throwable throwable) {
+                roomsObservable.notifyError(throwable);
+            }
+        };
+        this.roomRepository.getRoomsObservable().addObserver(roomsObserver);
+    }
+
+    /**
+     * Roomsをapiで取得する
+     */
+    public void get() {
+        roomRepository.getRooms();
+    }
+
+    public Observable<Rooms> getRoomsObservable() {
+        return roomsObservable;
+    }
+}
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 9a75f5f..0911db4 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
@@ -13,11 +13,12 @@
 import com.example.sprout.refactor.messengers.NavigationMessage;
 import com.example.sprout.refactor.messengers.ToastMessage;
 import com.example.sprout.refactor.model.ModelLocator;
+import com.example.sprout.refactor.model.RoomResponseModel;
+import com.example.sprout.refactor.model.RoomsModel;
 import com.example.sprout.refactor.model.entity.Room;
 import com.example.sprout.refactor.model.entity.RoomResponse;
 import com.example.sprout.refactor.model.entity.Rooms;
 import com.example.sprout.refactor.notification.Observer;
-import com.example.sprout.refactor.repository.RoomRepository;
 import com.example.sprout.refactor.util.PreferenceUtil;
 
 import java.util.ArrayList;
@@ -30,30 +31,30 @@
  */
 public class RoomListViewModel extends BaseViewModel {
 
-    private RoomRepository roomRepository = null;
+    private RoomsModel roomsModel = ModelLocator.get().getRoomsModel();
+    private RoomResponseModel roomResponseModel = ModelLocator.get().getRoomResponseModel();
     private RoomListAdapter adapter = null;
     private RoomListAdapter.OnItemClickedListener listener = null;
-    private Observer<Rooms> roomListObserver = null;
-    private Observer<RoomResponse> enterRoomObserver = null;
+    private Observer<Rooms> roomsObserver = null;
+    private Observer<RoomResponse> roomResponseObserver = null;
+    private PreferenceUtil preferenceUtil = PreferenceUtil.getInstance();
 
     public RoomListViewModel(RoomListAdapter adapter) {
-        this.roomRepository = ModelLocator.getModel(ModelLocator.Tag.ROOM_REPOSITORY, RoomRepository.class);
 
         this.listener = room -> {
             if (room.hasKey()) {
                 PreferenceUtil.getInstance().saveInt(PreferenceUtil.Key.ROOM_ID, room.getRoomId());
                 navigationObservable.notifyObservers(new NavigationMessage(NavigationMessage.Type.Start, RoomInputKeyActivity.class));
             } else {
-                roomRepository.enterRoom(room.getRoomId(), PreferenceUtil.getInstance().getInt(PreferenceUtil.Key.USER_ID));
+                roomResponseModel.enterRoom(room.getRoomId(), preferenceUtil.getInt(PreferenceUtil.Key.USER_ID));
             }
         };
         adapter.setListener(listener);
         this.adapter = adapter;
 
-        roomListObserver = new Observer<Rooms>() {
+        roomsObserver = new Observer<Rooms>() {
             @Override
             public void notify(Rooms rooms) {
-                ModelLocator.setModel(ModelLocator.Tag.Rooms, rooms);
                 ArrayList<Room> items = new ArrayList<>(rooms.getRoomList().values());
                 Collections.reverse(items);
                 RoomListViewModel.this.adapter.setDataAndRefresh(items);
@@ -65,13 +66,10 @@
             }
         };
 
-        enterRoomObserver = new Observer<RoomResponse>() {
+        roomResponseObserver = new Observer<RoomResponse>() {
             @Override
             public void notify(RoomResponse roomResponse) {
                 if (roomResponse.canEnter()) {
-                    ModelLocator.setModel(ModelLocator.Tag.RoomResponse, roomResponse);
-                    PreferenceUtil.getInstance().saveInt(PreferenceUtil.Key.ROOM_ID, roomResponse.getRoom().getRoomId());
-                    PreferenceUtil.getInstance().saveInt(PreferenceUtil.Key.MEMBER_ID, roomResponse.getMemberId());
                     navigationObservable.notifyObservers(new NavigationMessage(NavigationMessage.Type.Start, RoomMainActivity.class));
                 } else {
                     toastObservable.notifyObservers(new ToastMessage("入室に失敗しました", ToastMessage.Length.SHORT));
@@ -88,20 +86,20 @@
     @Override
     public void onResume() {
         super.onResume();
-        roomRepository.getRoomsObservable().addObserver(roomListObserver);
-        roomRepository.getRoomResponseObservable().addObserver(enterRoomObserver);
-        roomRepository.getRooms();
+        roomsModel.getRoomsObservable().addObserver(roomsObserver);
+        roomResponseModel.getRoomResponseObservable().addObserver(roomResponseObserver);
+        roomsModel.get();
     }
 
     @Override
     public void onPause() {
         super.onPause();
-        roomRepository.getRoomsObservable().removeObserver(roomListObserver);
-        roomRepository.getRoomResponseObservable().removeObserver(enterRoomObserver);
+        roomsModel.getRoomsObservable().removeObserver(roomsObserver);
+        roomResponseModel.getRoomResponseObservable().removeObserver(roomResponseObserver);
     }
 
     public void onClickRefresh() {
-        roomRepository.getRooms();
+        roomsModel.get();
     }
 
     public void onClickCreateRoom() {