diff --git a/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/connections/ObjectsConnection.java b/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/connections/ObjectsConnection.java
index e175902..fc6e111 100644
--- a/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/connections/ObjectsConnection.java
+++ b/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/connections/ObjectsConnection.java
@@ -3,7 +3,7 @@
 import org.ntlab.radishforandroidstudio.framework.network.HttpAsyncConnection;
 
 public class ObjectsConnection extends HttpAsyncConnection {
-    public ObjectsConnection() {
-        super("http://nitta-lab-www.is.konan-u.ac.jp:8080/CactusServer/rest/instances/objects");
+    public ObjectsConnection(String instanceId) {
+        super("http://nitta-lab-www.is.konan-u.ac.jp:8080/CactusServer/rest/instances/" + instanceId + "/objects");
     }
 }
diff --git a/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/models/MovableObjectModel.java b/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/models/MovableObjectModel.java
index a0f168c..14b34b4 100644
--- a/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/models/MovableObjectModel.java
+++ b/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/models/MovableObjectModel.java
@@ -13,7 +13,7 @@
 public class MovableObjectModel implements GameBaseModel, CallBack {
     private Universe universe;
     private RealTime3DFragment fragment;
-    private ObjectsConnection objectsConnection;
+    private ObjectsConnection con;
     private String instanceId;
     private String objectId;
 
@@ -39,6 +39,10 @@
      */
     @Override
     public void update(double interval) {
+        con = new ObjectsConnection(instanceId);
+        con.addQueryParam("instanceId", instanceId);
+        con.setCallBack(this);
+        con.doGet();
     }