diff --git a/bin/Kiji.class b/bin/Kiji.class
new file mode 100644
index 0000000..77930dd
--- /dev/null
+++ b/bin/Kiji.class
Binary files differ
diff --git a/bin/Momo.class b/bin/Momo.class
index 010c6b7..c1f3aa4 100644
--- a/bin/Momo.class
+++ b/bin/Momo.class
Binary files differ
diff --git a/bin/MyApp.class b/bin/MyApp.class
index d192670..eb9ab3a 100644
--- a/bin/MyApp.class
+++ b/bin/MyApp.class
Binary files differ
diff --git a/bin/Tori.class b/bin/Tori.class
deleted file mode 100644
index 7e0a547..0000000
--- a/bin/Tori.class
+++ /dev/null
Binary files differ
diff --git a/src/Ikimono.java b/src/Ikimono.java
index 8d6da9e..ef3fe76 100644
--- a/src/Ikimono.java
+++ b/src/Ikimono.java
@@ -56,8 +56,8 @@
         name = "saru";
     }
 }
-class Tori extends Ikimono {
-    Tori(){
-        name = "tori";
+class Kiji extends Ikimono {
+    Kiji(){
+        name = "kiji";
     }
 }
\ No newline at end of file
diff --git a/src/Mono.java b/src/Mono.java
index c3d8fb4..18b8b3b 100644
--- a/src/Mono.java
+++ b/src/Mono.java
@@ -11,7 +11,7 @@
     Momo(){
         name = "momo";
     }
-    Momotaro createMomotaro(){
+    Momotaro bornMomotaro(){
         return new Momotaro();
     }
 
diff --git a/src/MyApp.java b/src/MyApp.java
index f5bb737..fa9409f 100644
--- a/src/MyApp.java
+++ b/src/MyApp.java
@@ -1,13 +1,13 @@
 public class MyApp {
     public static void main(String[] args) throws Exception {
-        System.out.println("Hello, World!");
+        // System.out.println("Hello, World!");
 
         Ojiisan jisan = new Ojiisan();
         Obaasan baasan = new Obaasan();
 
         Momo momo = new Momo();
 
-        Momotaro taro = momo.createMomotaro();
+        Momotaro taro = momo.bornMomotaro();
 
         taro.morauFukuro(baasan.giveKibidangos());
 
@@ -15,7 +15,7 @@
         taro.watasuKibi(inu);
         Saru saru = new Saru();
         taro.watasuKibi(saru);
-        Tori tori = new Tori();
+        Kiji tori = new Kiji();
         taro.watasuKibi(tori);