diff --git a/.idea/misc.xml b/.idea/misc.xml
index 6ceea08..7dae684 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -5,12 +5,6 @@
       <map>
         <entry key="..\:/Users/Nitta/AndroidStudioProjects/IrisClient/app/src/main/res/layout/activity_main.xml" value="0.20969202898550723" />
         <entry key="..\:/Users/Nitta/StudioProjects/IrisClient/app/src/main/res/layout/activity_main.xml" value="0.266304347826087" />
-        <entry key="..\:/Users/Student/StudioProjects/IrisClient/app/src/main/res/layout/activity_create_room.xml" value="0.559375" />
-        <entry key="..\:/Users/Student/StudioProjects/IrisClient/app/src/main/res/layout/activity_drawing.xml" value="0.559375" />
-        <entry key="..\:/Users/Student/StudioProjects/IrisClient/app/src/main/res/layout/activity_enter_room.xml" value="0.559375" />
-        <entry key="..\:/Users/Student/StudioProjects/IrisClient/app/src/main/res/layout/activity_main.xml" value="0.559375" />
-        <entry key="..\:/Users/Student/StudioProjects/IrisClient/app/src/main/res/layout/activity_member_room.xml" value="0.559375" />
-        <entry key="..\:/Users/Student/StudioProjects/IrisClient/app/src/main/res/layout/activity_owner_room.xml" value="0.559375" />
         <entry key="..\:/Users/student/Desktop/IrisClient/app/src/main/res/layout-land/activity_main.xml" value="0.1574074074074074" />
         <entry key="..\:/Users/student/Desktop/IrisClient/app/src/main/res/layout/activity_create_room.xml" value="0.17571611799914494" />
         <entry key="..\:/Users/student/Desktop/IrisClient/app/src/main/res/layout/activity_enter_room.xml" value="0.17571611799914494" />
@@ -22,7 +16,14 @@
         <entry key="..\:/Users/student/StudioProjects/IrisClient/app/src/main/res/layout-land/activity_main.xml" value="0.31040564373897706" />
         <entry key="..\:/Users/student/StudioProjects/IrisClient/app/src/main/res/layout-sw600dp/activity_main.xml" value="0.2189207650273224" />
         <entry key="..\:/Users/student/StudioProjects/IrisClient/app/src/main/res/layout/activity_create_room.xml" value="0.29030797101449274" />
+        <entry key="..\:/Users/student/StudioProjects/IrisClient/app/src/main/res/layout/activity_drawing.xml" value="0.36614583333333334" />
+        <entry key="..\:/Users/student/StudioProjects/IrisClient/app/src/main/res/layout/activity_enter_room.xml" value="0.2791666666666667" />
+        <entry key="..\:/Users/student/StudioProjects/IrisClient/app/src/main/res/layout/activity_game.xml" value="0.36614583333333334" />
         <entry key="..\:/Users/student/StudioProjects/IrisClient/app/src/main/res/layout/activity_main.xml" value="0.29030797101449274" />
+        <entry key="..\:/Users/student/StudioProjects/IrisClient/app/src/main/res/layout/activity_member_room.xml" value="0.36614583333333334" />
+        <entry key="..\:/Users/student/StudioProjects/IrisClient/app/src/main/res/layout/activity_owner_room.xml" value="0.36614583333333334" />
+        <entry key="..\:/Users/totos/StudioProjects/IrisClient/app/src/main/res/layout/activity_drawing.xml" value="0.25" />
+        <entry key="..\:/Users/totos/StudioProjects/IrisClient/app/src/main/res/layout/activity_member_room.xml" value="0.33" />
       </map>
     </option>
   </component>
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 954b995..df9f9d6 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -3,16 +3,20 @@
     package="org.ntlab.irisclient">
 
     <uses-permission android:name="android.permission.INTERNET" />
+
     <application
         android:name=".Iris"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
+        android:inputType="text"
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
-        android:usesCleartextTraffic="true"
-        android:inputType="text"
-        android:theme="@style/Theme.IrisClient">
+        android:theme="@style/Theme.IrisClient"
+        android:usesCleartextTraffic="true">
+        <activity
+            android:name=".GameActivity"
+            android:exported="false" />
         <activity
             android:name=".MainActivity"
             android:exported="true"
@@ -26,23 +30,23 @@
         <activity
             android:name=".EnterRoomActivity"
             android:exported="true"
-            android:screenOrientation="landscape"></activity>
+            android:screenOrientation="landscape" />
         <activity
             android:name=".CreateRoomActivity"
             android:exported="true"
-            android:screenOrientation="landscape"></activity>
+            android:screenOrientation="landscape" />
         <activity
             android:name=".MemberRoomActivity"
             android:exported="true"
-            android:screenOrientation="landscape"></activity>
+            android:screenOrientation="landscape" />
         <activity
             android:name=".OwnerRoomActivity"
             android:exported="true"
-            android:screenOrientation="landscape"></activity>
+            android:screenOrientation="landscape" />
         <activity
             android:name=".DrawingActivity"
             android:exported="true"
-            android:screenOrientation="landscape"></activity>
+            android:screenOrientation="landscape" />
     </application>
 
 </manifest>
\ No newline at end of file
diff --git a/app/src/main/java/org/ntlab/irisclient/GameActivity.java b/app/src/main/java/org/ntlab/irisclient/GameActivity.java
new file mode 100644
index 0000000..1ecac8f
--- /dev/null
+++ b/app/src/main/java/org/ntlab/irisclient/GameActivity.java
@@ -0,0 +1,14 @@
+package org.ntlab.irisclient;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.os.Bundle;
+
+public class GameActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_game);
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_game.xml b/app/src/main/res/layout/activity_game.xml
new file mode 100644
index 0000000..eb05557
--- /dev/null
+++ b/app/src/main/res/layout/activity_game.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".GameActivity">
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file