diff --git a/src/test/java/hibernateTest/entities/Group.java b/src/test/java/hibernateTest/entities/Group.java
index 6eacf5b..84006d1 100644
--- a/src/test/java/hibernateTest/entities/Group.java
+++ b/src/test/java/hibernateTest/entities/Group.java
@@ -2,12 +2,14 @@
 package hibernateTest.entities;
 
 import java.util.ArrayList;
+import java.util.Set;
 
 public class Group {
     private String gId;
     private String uri, name;
     //private ArrayList<User> members;
-    private ArrayList<Request> requests;
+    //private ArrayList<Request> requests;
+    private Set<Request> requests;
 
     public Group(){
 
@@ -51,6 +53,18 @@
         return name;
     }
 
+    public Set<Request> getRequests(){
+        return requests;
+    }
+
+    public void setRequests(Set<Request> requests){
+        this.requests = requests;
+    }
+
+    public void addRequests(Request request){
+        requests.add(request);
+    }
+
     /*メンバー*/
     //public ArrayList<User> getMembersList(){
     //    return null;
diff --git a/src/test/java/hibernateTest/models/NativeApiIllustrationTest.java b/src/test/java/hibernateTest/models/NativeApiIllustrationTest.java
index e7ac3f7..b601801 100644
--- a/src/test/java/hibernateTest/models/NativeApiIllustrationTest.java
+++ b/src/test/java/hibernateTest/models/NativeApiIllustrationTest.java
@@ -23,6 +23,7 @@
  */
 package hibernateTest.models;
 
+import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
 
@@ -94,11 +95,11 @@
 		session = sessionFactory.openSession();
 		session.beginTransaction();
 		//load()メソッドを用いて取得する方法。
-		Request deleteRequest = (Request) session.load(Request.class, "222");
-		//データの削除
-		if(deleteRequest != null){
-			session.delete(deleteRequest);
-		}
+//		Request deleteRequest = (Request) session.load(Request.class, "222");
+//		//データの削除
+//		if(deleteRequest != null){
+//			session.delete(deleteRequest);
+//		}
 		session.getTransaction().commit();
 		session.close();
 
@@ -117,6 +118,22 @@
 		session.getTransaction().commit();
 		session.close();
 
+		/*リレーション*/
+		session = sessionFactory.openSession();
+		session.beginTransaction();
+		Group editGroup = session.load(Group.class, "111");
+		if(editGroup != null){
+			//リクエストはsession.save()をする必要がありません。
+			Request aditionalrequest1 = new Request("444", "http://test04", "1999.01.01", "011", "cookie", "1999.04.10",011);
+			Request aditionalrequest2 = new Request("555", "http://test05", "1999.01.01", "011", "cookie", "1999.04.10",011);
+			editGroup.addRequests(aditionalrequest1);
+			editGroup.addRequests(aditionalrequest2);
+			session.update(editGroup);
+		}
+		session.getTransaction().commit();
+		session.close();
+
+
 		/*全件取得と出力*/
 		session = sessionFactory.openSession();
 		session.beginTransaction();
@@ -132,6 +149,14 @@
 		for ( Request request : (List<Request>) requestResult ) {
 			System.out.println( "Request (" + request.getrId() + ") : " + request.getUri() + ": " + request.getProduct());
 		}
+
+		//リレーションを持たせた分の出力
+		Group outGroup = session.load(Group.class, "111");
+		List<Request> list = new ArrayList<Request>(outGroup.getRequests());
+		for ( Request request : (List<Request>) list ) {
+			System.out.println( "rId" + request.getrId() + " " + request.getUri() );
+		}
+
 		session.getTransaction().commit();
 		session.close();
 	}
diff --git a/src/test/resources/Group.hbm.xml b/src/test/resources/Group.hbm.xml
index 7a4a298..5f94b49 100644
--- a/src/test/resources/Group.hbm.xml
+++ b/src/test/resources/Group.hbm.xml
@@ -17,6 +17,22 @@
         </id>
         <property name="uri" column="URI"/>
         <property name="name" column="NAME"/>
+        <set name = "requests" cascade="all">
+            <key column = "Group_id"/>
+            <one-to-many class="Request"/>
+        </set>
+    </class>
+
+    <class name="Request" table="REQUESTS">
+        <id name="rId" column="RID">
+        </id>
+        <property name="uri" column="URI"/>
+        <property name="date" column="DATE"/>
+        <property name="issuerUid" column="ISSUERUID"/>
+        <property name="product" column="PRODUCT"/>
+        <property name="deadline" column="DEADLINE"/>
+        <property name="location" column="LOCATION"/>
+        <property name="done" column="DONE"/>
     </class>
 
 </hibernate-mapping>