diff --git a/src/main/java/cactusServer/entities/Character.java b/src/main/java/cactusServer/entities/Character.java
index fa8a42c..2aa5a93 100644
--- a/src/main/java/cactusServer/entities/Character.java
+++ b/src/main/java/cactusServer/entities/Character.java
@@ -6,6 +6,7 @@
 import java.util.Map;
 
 import org.ntlab.radishforandroidstudio.framework.model3D.Position3D;
+import org.ntlab.radishforandroidstudio.framework.model3D.Quaternion3D;
 
 import cactusServer.models.Instances;
 import cactusServer.utils.RandomStringGenerator;
@@ -16,7 +17,7 @@
 	private String areaURI;
 	private String name;
 	private Position3D position;
-	private Angle angle;
+	private Quaternion3D angle;
 	private String modelID;
 
 	private HashMap<String, Item> itemMap = new HashMap<>();
@@ -27,7 +28,7 @@
 		// JSONDecode���̌Ăяo���p
 	}
 
-	public Character(String instanceId, String accountURI, String name, Position3D position, Angle angle,
+	public Character(String instanceId, String accountURI, String name, Position3D position, Quaternion3D angle,
 			String modelID) {
 		setAccountURI(accountURI);
 		setName(name);
@@ -49,7 +50,7 @@
 		return position;
 	}
 
-	public Angle getAngle() {
+	public Quaternion3D getAngle() {
 		return angle;
 	}
 
@@ -83,7 +84,7 @@
 		this.position = position;
 	}
 
-	public void setAngle(Angle angle) {
+	public void setAngle(Quaternion3D angle) {
 		this.angle = angle;
 	}
 
@@ -141,7 +142,7 @@
 		return "";
 	}
 
-	public void update(Position3D position, Angle angle, String modelID, String areaURI) {
+	public void update(Position3D position, Quaternion3D angle, String modelID, String areaURI) {
 		setPosition(position);
 		setAngle(angle);
 		if (modelID != null) {
diff --git a/src/main/java/cactusServer/entities/Instance.java b/src/main/java/cactusServer/entities/Instance.java
index 8ef544a..665701c 100644
--- a/src/main/java/cactusServer/entities/Instance.java
+++ b/src/main/java/cactusServer/entities/Instance.java
@@ -11,6 +11,7 @@
 import org.ntlab.radishforandroidstudio.framework.model3D.ModelFileFormatException;
 import org.ntlab.radishforandroidstudio.framework.model3D.Object3D;
 import org.ntlab.radishforandroidstudio.framework.model3D.Position3D;
+import org.ntlab.radishforandroidstudio.framework.model3D.Quaternion3D;
 import org.ntlab.radishforandroidstudio.framework.model3D.Universe;
 import org.ntlab.radishforandroidstudio.framework.physics.AngularVelocity3D;
 import org.ntlab.radishforandroidstudio.framework.physics.Ground;
@@ -146,7 +147,7 @@
 	}
 
 	public IDAddressedEntity createCharacter(String instanceId, String accountURI, String name, Position3D position,
-			Angle angle, String model) {
+			Quaternion3D angle, String model) {
 		String id = RandomStringGenerator.generateUniqueString(Character.UNIQUE_ID_LENGTH,
 				RandomStringGenerator.ALPHA_NUMERIC, characterMap.keySet());
 		Character character = new Character(instanceId, accountURI, name, position, angle, model);
@@ -159,7 +160,7 @@
 		return this;
 	}
 
-	public Character updateCharacter(String characterId, Position3D position, Angle angle, String modelID) {
+	public Character updateCharacter(String characterId, Position3D position, Quaternion3D angle, String modelID) {
 		Character character = characterMap.get(characterId);
 		character.update(position, angle, modelID, null); // areaURI(��4����)�̍X�V�͌Ăяo����Ŏ����ōs����
 		return character;
diff --git a/src/main/java/cactusServer/entities/Player.java b/src/main/java/cactusServer/entities/Player.java
index e619951..093017f 100644
--- a/src/main/java/cactusServer/entities/Player.java
+++ b/src/main/java/cactusServer/entities/Player.java
@@ -2,6 +2,7 @@
 
 import org.ntlab.radishforandroidstudio.framework.gameMain.Actor;
 import org.ntlab.radishforandroidstudio.framework.model3D.Position3D;
+import org.ntlab.radishforandroidstudio.framework.model3D.Quaternion3D;
 
 import cactusServer.models.Instances;
 import net.arnx.jsonic.JSONHint;
@@ -11,7 +12,7 @@
 	private String characterURI;
 	private String areaURI;
 	private Position3D position;
-	private Angle angle;
+	private Quaternion3D angle;
 	private CameraState cameraState;
 	private EmoteState emoteState;
 	@JSONHint(ignore = true)
@@ -68,7 +69,7 @@
 		return position;
 	}
 
-	public Angle getAngle() {
+	public Quaternion3D getAngle() {
 		return angle;
 	}
 
@@ -96,7 +97,7 @@
 		this.position = position;
 	}
 
-	public void setAngle(Angle angle) {
+	public void setAngle(Quaternion3D angle) {
 		this.angle = angle;
 	}
 
@@ -112,7 +113,7 @@
 		setEmoteState(new EmoteState(animationClassToStart));
 	}
 
-	public Player update(String characterURI, Position3D position, Angle angle, CameraState cameraState,
+	public Player update(String characterURI, Position3D position, Quaternion3D angle, CameraState cameraState,
 			EmoteState.EmoteType animationClassToStart) {
 		setCharacterURI(characterURI);
 		setPosition(position);
diff --git a/src/main/java/cactusServer/models/Instances.java b/src/main/java/cactusServer/models/Instances.java
index e9eea96..76731ad 100644
--- a/src/main/java/cactusServer/models/Instances.java
+++ b/src/main/java/cactusServer/models/Instances.java
@@ -5,6 +5,7 @@
 import java.util.List;
 
 import org.ntlab.radishforandroidstudio.framework.model3D.Position3D;
+import org.ntlab.radishforandroidstudio.framework.model3D.Quaternion3D;
 
 import cactusServer.entities.Angle;
 import cactusServer.entities.CameraState;
@@ -121,7 +122,7 @@
 		return instance;
 	}
 	
-	public Player updatePlayer(String playerId, String characterURI, Position3D position, Angle angle,
+	public Player updatePlayer(String playerId, String characterURI, Position3D position, Quaternion3D angle,
 			CameraState cameraState, EmoteState.EmoteType animationClassToStart) {
 		Player player = playerMap.get(playerId);
 		player.update(characterURI, position, angle, cameraState, animationClassToStart);