diff --git a/src/cafeordersimulator/beverage.py b/src/cafeordersimulator/beverage.py
new file mode 100644
index 0000000..08f1592
--- /dev/null
+++ b/src/cafeordersimulator/beverage.py
@@ -0,0 +1,93 @@
+"""
+각종 음료 관련 코드
+
+Description:
+    추상클래스 Beverage를 상속받아, Espresso, HouseBlend 구현
+
+Author:
+    Name: Gangmin Kim
+    Email: rlarkdals7@gmail.com
+"""
+from abc import ABCMeta, abstractmethod
+
+
+class Beverage(metaclass=ABCMeta):
+    """
+    Description:
+        다양한 Beverage들을 구현하기 위한 Abstractive class
+    """
+
+    def __init__(self):
+        self.size = "tall"
+
+    def get_description(self) -> str:
+        """
+        Description:
+            상속받는 클래스에 따라 Beverage의 이름 출력 구현
+        """
+
+    def set_size(self, size) -> str:
+        """
+        Description:
+            Beverage의 사이즈 지정
+
+        args :
+            size : Beverage의 사이즈
+        """
+        self.size = size
+
+    def get_size(self) -> str:
+        """
+        Description:
+            Beverage의 사이즈 출력 구현
+        """
+        return self.size
+
+    @abstractmethod
+    def cost(self) -> float:
+        """
+        Description:
+            상속받는 클래스에 따라 Beverage의 가격 출력 구현
+        """
+
+
+class Espresso(Beverage):
+    """
+    Description:
+        Beverage 중 Espresso 클래스
+    """
+
+    def get_description(self) -> str:
+        """Espresso 이름 출력 구현
+
+        Returns: name of beverage
+        """
+        return "Espresso"
+
+    def cost(self) -> float:
+        """Espresso 가격 출력 구현
+
+        Returns: cost of beverage
+        """
+        return 1.99
+
+
+class HouseBlend(Beverage):
+    """
+    Description:
+        Beverage 중 Espresso 클래스
+    """
+
+    def get_description(self) -> str:
+        """Espresso 이름 출력 구현
+
+        Returns: name of beverage
+        """
+        return "HouseBlend"
+
+    def cost(self) -> float:
+        """Espresso 가격 출력 구현
+
+        Returns: cost of beverage
+        """
+        return 0.89
diff --git a/src/cafeordersimulator/condiment.py b/src/cafeordersimulator/condiment.py
new file mode 100644
index 0000000..6a383af
--- /dev/null
+++ b/src/cafeordersimulator/condiment.py
@@ -0,0 +1,106 @@
+"""
+각종 음료 관련 코드
+
+Description:
+    추상클래스 Beverage를 상속받아, Espresso, HouseBlend 구현
+
+Author:
+    Name: Gangmin Kim
+    Email: rlarkdals7@gmail.com
+"""
+from typing import Any
+
+from beverage import Beverage
+
+
+class CondimentDecorator(Beverage):
+    """
+    Description:
+        첨가물을 나타내는 추상클래스
+    """
+
+    def __init__(self, bevarage: Beverage) -> None:
+        super().__init__()
+        self._beverage = bevarage
+
+    @property
+    def beverage(self) -> Beverage:
+        """
+        Description:
+            상속받는 클래스에 따라 구현
+
+        Returns:
+            beverage
+        """
+        return self._beverage
+
+    def get_description(self) -> Any:
+        """
+        Description:
+            상속받는 클래스에 따라 Beverage의 이름 출력 구현
+
+        Returns:
+            beverage.get_description
+        """
+        return self._beverage.get_description()
+
+    def get_size(self) -> Any:
+        """
+        Description:
+            상속받는 클래스에 따라 Beverage의 사이즈 출력 구현
+
+        Returns:
+            beverage.get_size
+        """
+        return self._beverage.get_size()
+
+    def cost(self) -> Any:
+        """
+        Description:
+            상속받는 클래스에 따라 Beverage의 가격 출력 구현
+
+            Args:
+                None
+
+            Returns:
+                beverage.cost
+        """
+        return self._beverage.cost()
+
+
+class Mocha(CondimentDecorator):
+    """
+    Description:
+        Mocha를 나타내는 클래스
+    """
+
+    # def __init__(self, bevarage: Beverage) -> None:
+    #     super().__init__()
+    #     self._beverage = bevarage
+
+    def get_description(self) -> Any:
+        """
+        Description:
+            설명을 덧붙이는 함수
+
+        Returns:
+            beverage의 이름 + ", 모카"
+        """
+        return self._beverage.get_description() + ", 모카"
+
+    def cost(self) -> Any:
+        """
+        Description:
+            cost 계산시 size에 따라서 cost를 계산해준다.
+        Returns:
+            beverage cost + size depends cost
+        """
+        beverage_cost = self._beverage.cost()
+
+        if self._beverage.get_size() == "tall":
+            beverage_cost += 0.10
+        elif self._beverage.get_size() == "grande":
+            beverage_cost += 0.15
+        elif self._beverage.get_size() == "venti":
+            beverage_cost += 0.20
+        return beverage_cost
diff --git a/src/cafeordersimulator/test.py b/src/cafeordersimulator/test.py
new file mode 100644
index 0000000..a2cc413
--- /dev/null
+++ b/src/cafeordersimulator/test.py
@@ -0,0 +1,38 @@
+"""
+cafe order test 코드
+
+Description:
+    cafe order 테스트를 위한 코드
+
+Author:
+    Name: Gangmin Kim
+    Email: rlarkdals7@gmail.com
+"""
+
+from beverage import Espresso, HouseBlend
+from condiment import Mocha
+
+
+def main() -> None:
+    """summary
+    Description:
+        Test 진행함수
+    """
+    bevarage = Espresso()
+    print(bevarage.get_description() + " $" + str(bevarage.cost()))
+    assert bevarage.get_description() == "Espresso"
+
+    beverage2 = HouseBlend()
+    beverage2 = Mocha(beverage2)
+    print(beverage2.get_description() + " $" + str(beverage2.cost()))
+    assert beverage2.get_description() == "HouseBlend, 모카"
+
+    beverage3 = HouseBlend()
+    beverage3.set_size("venti")
+    beverage3 = Mocha(beverage3)
+    print(beverage3.cost())
+    assert beverage3.cost() == 1.09
+
+
+if __name__ == "__main__":
+    main()