diff --git a/app/src/main/java/com/example/sprout/refactor/activity/RoomCreateActivity.java b/app/src/main/java/com/example/sprout/refactor/activity/RoomCreateActivity.java
index 4d853aa..746e6f1 100644
--- a/app/src/main/java/com/example/sprout/refactor/activity/RoomCreateActivity.java
+++ b/app/src/main/java/com/example/sprout/refactor/activity/RoomCreateActivity.java
@@ -8,47 +8,68 @@
 
 import com.example.sprout.R;
 import com.example.sprout.databinding.RfActivityRoomCreateBinding;
-import com.example.sprout.refactor.common.ActivityEvent;
-import com.example.sprout.refactor.contract.ViewContract;
 import com.example.sprout.refactor.viewmodel.RoomCreateViewModel;
 
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.disposables.CompositeDisposable;
+import io.reactivex.schedulers.Schedulers;
+
 /**
  * ルーム作成のActivity
  *
  * @author matsumoto_k
  */
-public class RoomCreateActivity extends AppCompatActivity implements ViewContract {
+public class RoomCreateActivity extends AppCompatActivity {
+
+    private CompositeDisposable subscriptions = null;
+    private RoomCreateViewModel roomCreateViewModel = null;
+    private RfActivityRoomCreateBinding binding = null;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        RfActivityRoomCreateBinding binding = DataBindingUtil.setContentView(this, R.layout.rf_activity_room_create);
-        RoomCreateViewModel roomCreateViewModel = new RoomCreateViewModel((ViewContract) this);
+        binding = DataBindingUtil.setContentView(this, R.layout.rf_activity_room_create);
+        roomCreateViewModel = new RoomCreateViewModel();
         binding.setViewModel(roomCreateViewModel);
         getLifecycle().addObserver(roomCreateViewModel);
     }
 
     @Override
-    public void startActivity(ActivityEvent event) {
-        switch (event) {
-            case ROOM_MAIN:
-                startActivity(new Intent(RoomCreateActivity.this, RoomMainActivity.class));
-                break;
-        }
+    protected void onResume() {
+        super.onResume();
+        subscribe();
     }
 
-    @Override
-    public void finishActivity() {
-        finish();
-    }
-
-    @Override
-    public void showShortToast(String message) {
-        Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
-    }
-
-    @Override
-    public void showLongToast(String message) {
-        Toast.makeText(this, message, Toast.LENGTH_LONG).show();
+    private void subscribe() {
+        subscriptions = new CompositeDisposable();
+        // トーストの購読
+        subscriptions.add(
+                roomCreateViewModel.getToastMessanger()
+                        .observeOn(AndroidSchedulers.mainThread())
+                        .subscribe(toastMessage -> {
+                            switch (toastMessage.getLength()) {
+                                case SHORT:
+                                    Toast.makeText(this, toastMessage.getMessage(), Toast.LENGTH_SHORT).show();
+                                    break;
+                                case LONG:
+                                    Toast.makeText(this, toastMessage.getMessage(), Toast.LENGTH_LONG).show();
+                                    break;
+                            }
+                        })
+        );
+        // 画面遷移の購読
+        subscriptions.add(
+                roomCreateViewModel.getNavigationMessenger()
+                        .observeOn(Schedulers.computation())
+                        .subscribe(navigationMessage -> {
+                            switch (navigationMessage.getType()) {
+                                case Start:
+                                    startActivity(new Intent(RoomCreateActivity.this, navigationMessage.getClazz()));
+                                    break;
+                                case Finsih:
+                                    finish();
+                            }
+                        })
+        );
     }
 }