diff --git a/src/main/java/cactusServer/models/Instances.java b/src/main/java/cactusServer/models/Instances.java
index f24d232..0180e76 100644
--- a/src/main/java/cactusServer/models/Instances.java
+++ b/src/main/java/cactusServer/models/Instances.java
@@ -5,19 +5,21 @@
 
 /**
  * �C���X�^���X���Ǘ�����N���X
+ * 
  * @author ryo isitani
  *
  */
 public class Instances {
 	private static Instances theInstance = null;
 	private HashMap<String, Instance> instanceMap = new HashMap<>();
-	
+
 	private Instances() {
-		
+
 	}
-	
+
 	/**
 	 * Instances�N���X���擾���� (�V���O���g��)
+	 * 
 	 * @return
 	 */
 	public static Instances getInstance() {
@@ -26,24 +28,31 @@
 		}
 		return theInstance;
 	}
-	
+
 	/**
-	 * �V����Instance�N���X���쐬����Map�ɒlj�����
-	 * @param instanceId Instance�����ʂ����ӂ�ID
-	 * @param name�@�C���X�^���X�� (��)
+	 * �V����Instance���쐬����Map�ɒlj�����
+	 * 
+	 * @param instanceId
+	 *            Instance�����ʂ����ӂ�ID
+	 * @param name
+	 *            �C���X�^���X�� (��)
+	 * @return �V�����쐬���ꂽInstance
 	 */
-	public void createInstance(String instanceId, String name) {
+	public Instance createInstance(String instanceId, String name) {
 		Instance instance = new Instance(name);
 		instanceMap.put(instanceId, instance);
+		return instance;
 	}
 
 	/**
 	 * ID�ɑΉ�����Instance���擾���ĕԂ�
-	 * @param instanceId �擾������Instance��ID
+	 * 
+	 * @param instanceId
+	 *            �擾������Instance��ID
 	 * @return ID�ɑΉ�����Instance
 	 */
 	public Instance getInstance(String instanceId) {
 		return instanceMap.get(instanceId);
 	}
-	
+
 }