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);
 	}
 }