diff --git a/src/main/java/cactusServer/entities/Player.java b/src/main/java/cactusServer/entities/Player.java
index 4120783..4878612 100644
--- a/src/main/java/cactusServer/entities/Player.java
+++ b/src/main/java/cactusServer/entities/Player.java
@@ -17,11 +17,11 @@
 	private Quaternion3D angle;
 	private CameraState cameraState;
 	private EmoteState emoteState;
-	private long lastOperateTime = System.nanoTime();
+	private long lastUpdateTime = System.nanoTime();
 	@JSONHint(ignore = true)
 	public static final int UNIQUE_ID_LENGTH = 12;
 	@JSONHint(ignore = true)
-	public static final long STOP_TIME_LIMIT = (long)(30 * Math.pow(10, 9));
+	public static final long STOP_TIME_LIMIT = (long)(30 * 1e+9);
 
 	private Player() {
 		// JSONDecode���̌Ăяo���p
@@ -42,7 +42,7 @@
 			setEmoteState(new EmoteState());
 		}
 		Character character = getCharacter();
-		readCharacterData();
+		readCharacterData(character);
 		initPlaceable(character.getModelID());
 	}
 
@@ -85,8 +85,8 @@
 	}
 	
 	@JSONHint(ignore = true)
-	public long getLastOperateTime() {
-		return lastOperateTime;
+	public long getLastUpdateTime() {
+		return lastUpdateTime;
 	}
 
 	public void setInstanceID(String instanceID) {
@@ -122,15 +122,17 @@
 	}
 	
 	@JSONHint(ignore = true)
-	public void setLastOperateTime(long lastOperateTime) {
-		this.lastOperateTime = lastOperateTime;
+	public void setLastUpdateTime(long lastUpdateTime) {
+		this.lastUpdateTime = lastUpdateTime;
 	}
 
 	public Player update(String characterID, Position3D position, Quaternion3D angle, CameraState cameraState,
 			EmoteState.EmoteType animationClassToStart) {
-		setCharacterID(characterID);
 		setPosition(position);
 		setAngle(angle);
+		if (!this.characterID.equals(characterID)) {
+			changeCharacter(characterID);
+		}
 		setCameraState(cameraState);
 		updateEmoteType(animationClassToStart);
 //		updateAreaURI();
@@ -169,7 +171,9 @@
 	public void changeCharacter(String characterID) {
 		writeCharacterData();
 		setCharacterID(characterID);
-		readCharacterData();
+		Character character = getCharacter();
+		readCharacterData(character);
+		initPlaceable(character.getModelID());
 	}
 
 	public void destroy() {
@@ -186,13 +190,14 @@
 		setAreaURI(character.getAreaURI());
 	}
 
-	private void readCharacterData() {
-		Character character = getCharacter();
-		readCharacterData(character);
-	}
+//	private void readCharacterData() {
+//		Character character = getCharacter();
+//		readCharacterData(character);
+//	}
 
 	private void writeCharacterData() {
 		Character character = getCharacter();
+//		if (character == null) return;
 		character.update(position, angle, areaURI);
 	}
 }
diff --git a/src/main/java/cactusServer/models/Instances.java b/src/main/java/cactusServer/models/Instances.java
index 32c7785..3f99c4a 100644
--- a/src/main/java/cactusServer/models/Instances.java
+++ b/src/main/java/cactusServer/models/Instances.java
@@ -113,9 +113,9 @@
 	}
 	
 	public Player updatePlayer(String playerId, String characterID, Position3D position, Quaternion3D angle,
-			CameraState cameraState, EmoteState.EmoteType animationClassToStart, long lastOperateTime) {
+			CameraState cameraState, EmoteState.EmoteType animationClassToStart, long lastUpdateTime) {
 		Player player = updatePlayer(playerId, characterID, position, angle, cameraState, animationClassToStart);
-		player.setLastOperateTime(lastOperateTime);
+		player.setLastUpdateTime(lastUpdateTime);
 		return player;
 	}
 
diff --git a/src/main/java/cactusServer/resources/PlayersRest.java b/src/main/java/cactusServer/resources/PlayersRest.java
index 0fadd0f..1e0352a 100644
--- a/src/main/java/cactusServer/resources/PlayersRest.java
+++ b/src/main/java/cactusServer/resources/PlayersRest.java
@@ -29,14 +29,13 @@
 	// @Produces(MediaType.APPLICATION_JSON)
 	@Produces(MediaType.TEXT_PLAIN)
 	public String createPlayer(@FormParam("instanceID") String instanceID,
-			@FormParam("characterID") String characterID/*, @FormParam("cameraState") CameraState cameraState,
-			@FormParam("animationClassToStart") EmoteState.EmoteType animationClassToStart*/) {
+			@FormParam("characterID") String characterID) {
 		Instances instances = Instances.getInstance();
 		HashMap<String, Player> idMap = instances.createPlayer(instanceID, characterID, null,
 				null);
 		HashMap<String, Player> uriMap = new HashMap<>();
 		for (String id : idMap.keySet()) {
-			String uri = (InstancesRest.INSTANCES_URI + "/" + "/players/") + id;
+			String uri = (InstancesRest.INSTANCES_URI + "/players/") + id;
 			uriMap.put(uri, idMap.get(id));
 		}
 		return JSON.encode(uriMap);
diff --git a/src/main/java/cactusServer/utils/App.java b/src/main/java/cactusServer/utils/App.java
index f02f092..930028c 100644
--- a/src/main/java/cactusServer/utils/App.java
+++ b/src/main/java/cactusServer/utils/App.java
@@ -46,11 +46,11 @@
 		System.out.println("pass");
 	}
 
-	@Override
+	@Override
 	public void run() {
 		//System.out.println("�^�X�N�����s");
 		CollisionManager.getCollision().collisionRun();
-		deletePlayerOfExceedTimeLimit();
+		removeInactivePlayers();
 	}
 
 	public void start(int interval) {
@@ -84,27 +84,35 @@
 		Player player2 = new Player("test2", "chara2", cameraState, EmoteType.DUMMY);
 		Instances.getInstance().getPlayers().put("player2", player2);
 		// �_�~�[�I�u�W�F�N�g
-		Instances.getInstance().getInstance("test1").createObject(new Position3D(0, 0, 0), new Velocity3D(),
-				new AngularVelocity3D(), new Quaternion3D(), new Attribute(true, 1), 0);
-		// �m�F�p
-		// String player1Encode = JSON.encode(player1, true);
-		// String player2Encode = JSON.encode(player2, true);
-		// Player player1Decode = JSON.decode(player1Encode, Player.class);
-		// Player player2Decode = JSON.decode(player2Encode, Player.class);
-		// System.out.println(JSON.encode(player1Decode, true));
-		// System.out.println(JSON.encode(player2Decode, true));
+		Instances.getInstance().getInstance("test1").createObject(new Position3D(0, 0, 0), new Velocity3D(),
+				new AngularVelocity3D(), new Quaternion3D(), new Attribute(true,1), 0);
+//		// �m�F�p
+//		 String player1Encode = JSON.encode(player1, true);
+//		 String player2Encode = JSON.encode(player2, true);
+//		 Player player1Decode = JSON.decode(player1Encode, Player.class);
+//		 Player player2Decode = JSON.decode(player2Encode, Player.class);
+//		 System.out.println(JSON.encode(player1Decode, true));
+//		 System.out.println(JSON.encode(player2Decode, true));
+		
+//		JSON json = new JSON();
+//		String characterId = player1.getCharacterID();
+//		String encodeCharacterId = json.encode(characterId);
+//		System.out.println(characterId);
+//		System.out.println(encodeCharacterId);
+//		String position = json.encode(player1.getPosition());
+//		System.out.println(position);
 	}
 	
-	private void deletePlayerOfExceedTimeLimit() {
+	private void removeInactivePlayers() {
 		long currentTime = System.nanoTime();
 		Iterator<Map.Entry<String, Player>> it = Instances.getInstance().getPlayers().entrySet().iterator();
 		while (it.hasNext()) {
 			Map.Entry<String, Player> entry = it.next();
 			String playerId = entry.getKey();
 			Player player = entry.getValue();
-			long lastOperateTime = player.getLastOperateTime();
-			System.out.println(currentTime + ", " + (lastOperateTime + Player.STOP_TIME_LIMIT) + " // playerId: " + playerId);
-			if (currentTime > (lastOperateTime + Player.STOP_TIME_LIMIT)) {
+			long lastUpdateTime = player.getLastUpdateTime();
+			System.out.println(currentTime + ", " + (lastUpdateTime + Player.STOP_TIME_LIMIT) + " // playerId: " + playerId);
+			if (currentTime > (lastUpdateTime + Player.STOP_TIME_LIMIT)) {
 				System.out.println("delete started (playerId: " + playerId + ")");
 				player.destroy();
 				Instance instance = Instances.getInstance().getInstance(player.getInstanceID());