diff --git a/bin/Fukuro.class b/bin/Fukuro.class
new file mode 100644
index 0000000..77353c5
--- /dev/null
+++ b/bin/Fukuro.class
Binary files differ
diff --git a/bin/Ikimono.class b/bin/Ikimono.class
index f26e92b..a386721 100644
--- a/bin/Ikimono.class
+++ b/bin/Ikimono.class
Binary files differ
diff --git a/bin/Inu.class b/bin/Inu.class
index bbfc6d5..636810c 100644
--- a/bin/Inu.class
+++ b/bin/Inu.class
Binary files differ
diff --git a/bin/Kibidango.class b/bin/Kibidango.class
index c312229..0e49412 100644
--- a/bin/Kibidango.class
+++ b/bin/Kibidango.class
Binary files differ
diff --git a/bin/Kiji.class b/bin/Kiji.class
index 77930dd..5673607 100644
--- a/bin/Kiji.class
+++ b/bin/Kiji.class
Binary files differ
diff --git a/bin/Momo.class b/bin/Momo.class
index c1f3aa4..f0b5f53 100644
--- a/bin/Momo.class
+++ b/bin/Momo.class
Binary files differ
diff --git a/bin/Momotaro.class b/bin/Momotaro.class
index 5bf7c2a..78975b2 100644
--- a/bin/Momotaro.class
+++ b/bin/Momotaro.class
Binary files differ
diff --git a/bin/Mono.class b/bin/Mono.class
index bd07a0a..02f6acd 100644
--- a/bin/Mono.class
+++ b/bin/Mono.class
Binary files differ
diff --git a/bin/MyApp.class b/bin/MyApp.class
index eb9ab3a..6773776 100644
--- a/bin/MyApp.class
+++ b/bin/MyApp.class
Binary files differ
diff --git a/bin/Obaasan.class b/bin/Obaasan.class
index 701e24f..d55ba0b 100644
--- a/bin/Obaasan.class
+++ b/bin/Obaasan.class
Binary files differ
diff --git a/bin/Ojiisan.class b/bin/Ojiisan.class
index b55994f..1619165 100644
--- a/bin/Ojiisan.class
+++ b/bin/Ojiisan.class
Binary files differ
diff --git a/bin/Saru.class b/bin/Saru.class
index 0a98188..827f17a 100644
--- a/bin/Saru.class
+++ b/bin/Saru.class
Binary files differ
diff --git a/src/Ikimono.java b/src/Ikimono.java
index ef3fe76..a859d65 100644
--- a/src/Ikimono.java
+++ b/src/Ikimono.java
@@ -1,63 +1,53 @@
-import java.util.ArrayDeque;
-
 public class Ikimono {
     String name = "";
     void printName(){
         System.out.println(name);
     }
-    void morauKibi(Kibidango dango){
-        System.out.println(name + "が "+dango.toString()+" をもらった");
+    void morau(Mono mono){
+        System.out.println(name + "が "+mono.toString()+" をもらった");
     }
 }
-
 class Momotaro extends Ikimono {
-    ArrayDeque<Kibidango> kibiBukuro;
-    Momotaro(){
-        name = "momotarou";
-    }
-
-    void morauFukuro(ArrayDeque<Kibidango> f){
-        kibiBukuro = f;
+    Fukuro kibiBukuro;
+    Momotaro(){    name = "桃太郎";   }
+    void morau(Mono mono){
+        super.morau(mono);
+        if (mono instanceof Fukuro) kibiBukuro = (Fukuro)mono;
     }
     void watasuKibi(Ikimono dareka){
-        Kibidango oneKibi = kibiBukuro.pop();
-        dareka.morauKibi(oneKibi);
-        System.out.println("nokori "+kibiBukuro.size());
+        Kibidango oneKibi = (Kibidango)kibiBukuro.pop();
+        dareka.morau(oneKibi);
+        System.out.println("  残り "+kibiBukuro.size()+" 個");
     }
 }
-
 class Ojiisan extends Ikimono {
-    Ojiisan(){
-        name = "ojiiisan";
-    }
-
+    Ojiisan(){  name = "お爺さん";   }
 }
-
 class Obaasan extends Ikimono {
+    Fukuro fukuro;
     Obaasan(){
-        name = "obaasan";
+        name = "お婆さん";
+        fukuro = new Fukuro();
     }
-    ArrayDeque<Kibidango> giveKibidangos(){
-        ArrayDeque<Kibidango> fukuro = new ArrayDeque<Kibidango>();
+    void tsukuruKibi(){
         fukuro.add(new Kibidango());
         fukuro.add(new Kibidango());
         fukuro.add(new Kibidango());
-
-        return fukuro;
+    }
+    void watasuFukuro(Ikimono dareka){
+        dareka.morau(fukuro);
+        fukuro = null;
     }
 }
 class Inu extends Ikimono {
-    Inu(){
-        name = "inu";
-    }
+    Inu(){   name = "犬";    }
 }
 class Saru extends Ikimono {
-    Saru(){
-        name = "saru";
-    }
+    Saru(){  name = "猿";    }
 }
 class Kiji extends Ikimono {
-    Kiji(){
-        name = "kiji";
-    }
-}
\ No newline at end of file
+    Kiji(){  name = "キジ";   }
+}
+
+
+
diff --git a/src/Mono.java b/src/Mono.java
index 18b8b3b..70ce297 100644
--- a/src/Mono.java
+++ b/src/Mono.java
@@ -1,26 +1,42 @@
+import java.util.ArrayDeque;
 public class Mono {
     String name = "";
-
+    public Mono(String name){
+        this.name = name;
+    }
     @Override
     public String toString(){
         return name;
     }
 }
-
 class Momo extends Mono {
     Momo(){
-        name = "momo";
+        super("桃");
     }
     Momotaro bornMomotaro(){
-        return new Momotaro();
+        return new Momotaro(); //桃太郎が生まれる
     }
-
 }
-
 class Kibidango extends Mono {
     Kibidango(){
-        name = "kibidango";
+        super("きび団子");
     }
-    
+}
+class Fukuro extends Mono {
+    ArrayDeque<Mono> fukuro; 
+    Fukuro(){
+        super("きび団子が入った袋");
+        fukuro = new ArrayDeque<Mono>();
+    }
+    public void add(Mono mono){
+        fukuro.add(mono);
+    }
+    public Mono pop(){
+        return fukuro.pop();
+    }
+    public int size(){
+        return fukuro.size();
+    }
+}
 
-}
\ No newline at end of file
+
diff --git a/src/MyApp.java b/src/MyApp.java
index fa9409f..01d275b 100644
--- a/src/MyApp.java
+++ b/src/MyApp.java
@@ -1,23 +1,25 @@
 public class MyApp {
     public static void main(String[] args) throws Exception {
-        // System.out.println("Hello, World!");
-
-        Ojiisan jisan = new Ojiisan();
-        Obaasan baasan = new Obaasan();
-
+        // むかしむかし、あるところに、おじいさんとお婆さんが住んでいました
+        Ojiisan ojiisan = new Ojiisan();
+        Obaasan obaasan = new Obaasan();
+        // お婆さんは川で桃を拾ってきました
         Momo momo = new Momo();
-
+        // 桃から、桃太郎が生まれました
         Momotaro taro = momo.bornMomotaro();
+        // お婆さんは、桃太郎に、きび団子の入った袋を渡しました
+        obaasan.tsukuruKibi();
+        obaasan.watasuFukuro(taro);
 
-        taro.morauFukuro(baasan.giveKibidangos());
-
+        // 犬がいました。桃太郎は犬にきび団子を渡しました
         Inu inu = new Inu();
         taro.watasuKibi(inu);
+        // 猿がいました。桃太郎は猿にきび団子を渡しました
         Saru saru = new Saru();
         taro.watasuKibi(saru);
+        // キジがいました。桃太郎はキジにきび団子を渡しました
         Kiji tori = new Kiji();
         taro.watasuKibi(tori);
-
-
     }
 }
+