diff --git "a/TIL/sample/2026-06-16-\354\203\201\354\206\215.md" "b/TIL/sample/2026-06-16-\354\203\201\354\206\215.md"
new file mode 100644
index 0000000..d4baea5
--- /dev/null
+++ "b/TIL/sample/2026-06-16-\354\203\201\354\206\215.md"
@@ -0,0 +1,23 @@
+# 2026-06-16 상속
+
+## 오늘 배운 내용
+
+- 상속: 클래스의 확장
+- 메소드 override vs 클래스 overload
+- String 클리스 상속 못함, final 붙이면 상속 못함.
+- 
+- (왜) 복사붙여넣기의 문제점 (추가, 수정에 시간이 걸림. 소스의 파악이나 관리가 어려워짐.)
+- (어떻게) 클래스 상속 키워드: extands, 매소드 상속 키워드: super
+- (언제) 자식 is a 부모 조건 성립시 e.g. 스마트폰 is a 전자기기
+- (어디서)새로운 자식 클래스에서
+- (무엇을)부모 클래스를
+- (누가) JAVA
+
+
+
+## 실습 코드
+
+```java
+
+```
+
diff --git a/game/game.puml b/game/game.puml
new file mode 100644
index 0000000..81894c4
--- /dev/null
+++ b/game/game.puml
@@ -0,0 +1,31 @@
+@startuml
+scale 2
+
+class SuperHero extends Hero {
+    +void setFlying(bool flying)
+    +boolean isFlying()
+}
+
+class Hero {
+    -int hp //private
+    -String name
+
+    +void attack()
+}
+
+class Wizard {
+    +void heal(Hero)
+}
+
+class GreatWizard extends Wizard {
+    +void superHeal(Hero)
+}
+
+class Slime {
+    +void attack(Hero)
+}
+
+class PoisonSlime extends Slime {
+    +void attack(Hero) <<@Override>>
+}
+@enduml
\ No newline at end of file
diff --git a/game/src/main/java/com/survivalcoding/GreatWizard.java b/game/src/main/java/com/survivalcoding/GreatWizard.java
new file mode 100644
index 0000000..ed41082
--- /dev/null
+++ b/game/src/main/java/com/survivalcoding/GreatWizard.java
@@ -0,0 +1,21 @@
+package com.survivalcoding;
+
+public class GreatWizard extends Wizard{
+    private int mp = 150;
+    void heal (Hero hero) {
+        hero.setHp(hero.getHp() +25);
+        hero.setMp(hero.getMp() -5);
+
+    }
+    void superHeal (Hero hero) {
+        if (hero.getMp() < 50) {
+            System.out.println("마나가 부족합니다.");
+        }
+        else{
+            hero.setHp(Max_Hp);
+            hero.setMp(hero.getMp() -50);
+            System.out.println("슈퍼 힐을 시전했습니다. 대상 HP: " + hero.getHp());
+        }
+
+    }
+}
diff --git a/game/src/main/java/com/survivalcoding/PoisonSlime.java b/game/src/main/java/com/survivalcoding/PoisonSlime.java
new file mode 100644
index 0000000..30358e5
--- /dev/null
+++ b/game/src/main/java/com/survivalcoding/PoisonSlime.java
@@ -0,0 +1,29 @@
+package com.survivalcoding;
+
+public class PoisonSlime extends Slime{
+    private int poisonCount = 5;
+
+
+    public PoisonSlime(String suffix, int hp) {
+        super(suffix, hp);
+    }
+    public PoisonSlime(String suffix) {
+        super(suffix, 15); // 기본 독슬라임 hp 값: 15
+    }
+
+    @Override
+    void attack(Hero hero) {
+        super.attack(hero);
+
+        if (poisonCount != 0){
+            System.out.println("추가로 독 포자를 살포했다!");
+            int poisonDemage = (int)(hero.getHp() / 5);
+            hero.setHp(hero.getHp() - poisonDemage);
+
+            poisonCount -= 1;
+        }
+    }
+
+
+
+}
diff --git a/game/src/main/java/com/survivalcoding/Slime.java b/game/src/main/java/com/survivalcoding/Slime.java
new file mode 100644
index 0000000..25d7a43
--- /dev/null
+++ b/game/src/main/java/com/survivalcoding/Slime.java
@@ -0,0 +1,20 @@
+package com.survivalcoding;
+
+public class Slime {
+    final String suffix;
+    int hp;
+
+    public Slime(String suffix, int hp) {
+    }
+    public Slime(String suffix) {
+        this.suffix = suffix;
+    }
+
+    void attack(Hero hero) {
+        System.out.println("슬라임 " + suffix + "이/가 공격했다" );
+        System.out.println("10의 데미지");
+
+        hero.setHp(hero.getHp() - 10);
+    }
+    
+}
diff --git a/game/src/main/java/com/survivalcoding/Wizard.java b/game/src/main/java/com/survivalcoding/Wizard.java
index 74e9ea1..d76cd12 100644
--- a/game/src/main/java/com/survivalcoding/Wizard.java
+++ b/game/src/main/java/com/survivalcoding/Wizard.java
@@ -1,6 +1,12 @@
 package com.survivalcoding;
 
 public class Wizard {
+    static final int MAX_MP = 100;
+    int hp;
+    int mp = MAX_MP;
+    Wand wand;
+    private String name;
+
     public int getHp() {
         return hp;
     }
@@ -14,8 +20,6 @@ public void setHp(int hp) {
         this.hp = hp;
     }
 
-    int hp;
-
     public int getMp() {
         return mp;
     }
@@ -28,8 +32,6 @@ public void setMp(int mp) {
         this.mp = mp;
     }
 
-    int mp;
-
     public String getName() {
         return name;
     }
@@ -45,8 +47,6 @@ public void setName(String name) {
         this.name = name;
     }
 
-    private String name;
-
     public Wand getWand() {
         return wand;
     }
@@ -59,11 +59,11 @@ public void setWand(Wand wand) {
         this.wand = wand;
     }
 
-    Wand wand;
-
     void heal(Hero hero) {
-        int basePoint = 10;
-        int recovPoint = (int) (basePoint * this.wand.power);
-        hero.setHp(hero.getHp() + recovPoint);
+        int recoverPoint =  20;
+        int usedPoint = 10;
+
+        hero.setHp(hero.getHp() + recoverPoint);
+        hero.setMp(hero.getMp() - usedPoint);
     }
 }