diff --git a/.gitignore b/.gitignore
index cb0e6a9..fac7295 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 bin/*
+src/*.class
 *.class
\ No newline at end of file
diff --git a/.vscode/launch.json b/.vscode/launch.json
index 18d341e..b0b8556 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -6,6 +6,29 @@
     "configurations": [
         {
             "type": "java",
+            "name": "Launch UrashimaTarou",
+            "request": "launch",
+            "mainClass": "UrashimaTarou",
+            "projectName": "JavaDesignPattern_3cd6a2ec"
+        },
+        {
+            "type": "java",
+            "name": "Launch MyApp",
+            "request": "launch",
+            "mainClass": "MyApp",
+            "projectName": "JavaDesignPattern_3cd6a2ec",
+            "noDebug": false,
+            "__progressId": "d116ee82-b920-44ae-930c-76cce5bca10f"
+        },
+        {
+            "type": "java",
+            "name": "Launch Urashima",
+            "request": "launch",
+            "mainClass": "Urashima",
+            "projectName": "JavaDesignPattern_3cd6a2ec"
+        },
+        {
+            "type": "java",
             "name": "Launch Current File",
             "request": "launch",
             "mainClass": "${file}"
@@ -18,4 +41,4 @@
             "projectName": "JavaDesignPattern_7f164bb0"
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/bin/Urashima.class b/bin/Urashima.class
index 6a5a076..1776cab 100644
--- a/bin/Urashima.class
+++ b/bin/Urashima.class
Binary files differ
diff --git a/src/Actor.java b/src/Actor.java
index bfc5ee1..ad5b1ad 100644
--- a/src/Actor.java
+++ b/src/Actor.java
@@ -1,25 +1,79 @@
 public class Actor {
     String name = "";
 
-    void showName() {
+    public void showName() {
         System.out.println(name);
     }
 
     void getItem(Item item) {
-        System.out.println(name + " は " + item.to_string() + " を手に入れた。");
+        System.out.println(name + " は " + item.toString() + " を受け取った。");
     }
 
-    void giveItem(Item item, Actor name) {
-        System.out.println(this.name + " は " + item.to_string() + " を " + name.to_string() + " に渡した。");
-    }
-
-    String to_string(){
+    @Override
+    public String toString() {
         return name;
     }
+    
+    boolean isOld = false; // 年をとるとtrueに設定
+
+    void checkOld() {
+        if (this.isOld) {
+            System.out.println(name + " は老人になってしまった。");
+        }
+    }
 }
 
 class Urashima extends Actor {
-    Urashima(){
+    Tamatebako tamatebako;
+
+    Urashima() {
         name = "浦島太郎";
     }
+
+    void rescueSomeone(Actor someone) {
+        System.out.println(this.name + " は " + someone.toString() + " を助けた。");
+
+    }
+
+    void getItem(Item item) {
+        super.getItem(item);
+    }
+
+    void openBox(Item item) {
+        System.out.println(this.name + " は " + item.toString() + " を開けた。");
+        this.isOld = true;
+    }
+}
+
+class Kame extends Actor {
+    Kame() {
+        name = "亀";
+    }
+
+    void gotoRyuuguujou(Actor someone) {
+        System.out.println(this.name + " は "+ someone.toString() +" を竜宮城に連れて行った。");
+    }
+}
+
+class Childlen extends Actor {
+    Childlen() {
+        name = "子供たち";
+    }
+
+    void hit(Actor someone) {
+        System.out.println(this.name + " は " + someone.toString() + " をいじめている。");
+    }
+}
+
+class Otohime extends Actor {
+    Tamatebako tamatebako;
+
+    Otohime() {
+        name = "乙姫";
+    }
+
+    void omotenashi(Actor someone) {
+        System.out.println(this.name + " は " + someone.toString() + " をもてなした。");
+
+    }
 }
\ No newline at end of file
diff --git a/src/App.class b/src/App.class
deleted file mode 100644
index f2000fe..0000000
--- a/src/App.class
+++ /dev/null
Binary files differ
diff --git a/src/Item.java b/src/Item.java
index 0720cf1..d761337 100644
--- a/src/Item.java
+++ b/src/Item.java
@@ -2,13 +2,11 @@
     String name = "";
 
     public Item(String string) {
+        this.name = string;
     }
 
-    void setMono(String name) {
-        this.name = name;
-    }
-
-    public String to_string() {
+    @Override
+    public String toString() {
         return name;
     }
 
diff --git a/src/Urashima.java b/src/Urashima.java
deleted file mode 100644
index a6d338d..0000000
--- a/src/Urashima.java
+++ /dev/null
@@ -1,10 +0,0 @@
-public class Urashima {
-    public static void main(String[] args) throws Exception {
-        System.out.println("Hello, World!");
-
-        // 
-        Urashima urashima = new Urashima();
-        Tamatebako tamatebako = new Tamatebako();
-        urashima.getItem(tamatebako);
-    }
-}
diff --git a/src/Urashima.pu b/src/Urashima.pu
new file mode 100644
index 0000000..1fe3f64
--- /dev/null
+++ b/src/Urashima.pu
@@ -0,0 +1,59 @@
+@startuml name 浦島太郎
+
+class UrashimaTarou [[java:UrashimaTarou]] {
+	+{static} main(args: String[]): void
+}
+
+class Item [[java:Item]] {
+	~name: String
+	+Item(string: String)
+	+toString(): String
+}
+class Tamatebako [[java:Tamatebako]] {
+	~Tamatebako()
+}
+class Item [[java:Item]] {
+}
+Item <|-- Tamatebako
+
+class Actor [[java:Actor]] {
+	~name: String
+	~isOld: boolean
+	+showName(): void
+	~getItem(item: Item): void
+	+toString(): String
+	~checkOld(): void
+}
+class Urashima [[java:Urashima]] {
+	~tamatebako: Tamatebako
+	~Urashima()
+	~rescueSomeone(someone: Actor): void
+	~getItem(item: Item): void
+	~openBox(item: Item): void
+}
+class Actor [[java:Actor]] {
+}
+Actor <|-- Urashima
+class Kame [[java:Kame]] {
+	~Kame()
+	~gotoRyuuguujou(someone: Actor): void
+}
+class Actor [[java:Actor]] {
+}
+Actor <|-- Kame
+class Childlen [[java:Childlen]] {
+	~Childlen()
+	~hit(someone: Actor): void
+}
+class Actor [[java:Actor]] {
+}
+Actor <|-- Childlen
+class Otohime [[java:Otohime]] {
+	~tamatebako: Tamatebako
+	~Otohime()
+	~omotenashi(someone: Actor): void
+}
+class Actor [[java:Actor]] {
+}
+Actor <|-- Otohime
+@enduml
\ No newline at end of file
diff --git a/src/UrashimaTarou.java b/src/UrashimaTarou.java
new file mode 100644
index 0000000..880fc8d
--- /dev/null
+++ b/src/UrashimaTarou.java
@@ -0,0 +1,31 @@
+public class UrashimaTarou {
+    public static void main(String[] args){
+        System.out.println("浦島太郎\n");
+
+        // むかしむかし、あるところに浦島太郎がいました。
+        Urashima urashima = new Urashima();
+
+        // 浦島太郎が浜に行くと、亀が子供たちにいじめられていました。
+        Childlen children = new Childlen();
+        Kame kame = new Kame();
+        children.hit(kame);
+
+        // 浦島太郎がカメを助けると、お礼に竜宮城に連れて行ってもらいました。
+        urashima.rescueSomeone(kame);
+        kame.gotoRyuuguujou(urashima);
+
+        // 乙姫はカメを助けた浦島太郎を歓迎した。
+        Otohime otohime = new Otohime();
+        otohime.omotenashi(urashima);
+        
+        // 浦島太郎は帰り際に乙姫から玉手箱を受け取る。
+        Tamatebako tamatebako = new Tamatebako();
+        urashima.getItem(tamatebako);
+
+        // 地上に戻った浦島太郎は玉手箱を開けてしまい、老人になってしまう。
+        urashima.openBox(tamatebako);
+
+        urashima.checkOld();
+        return;
+    }
+}