diff --git a/src/components/commons/button/Button.tsx b/src/components/commons/button/Button.tsx
index 5eeb32c1..09f25fd0 100644
--- a/src/components/commons/button/Button.tsx
+++ b/src/components/commons/button/Button.tsx
@@ -6,14 +6,20 @@ export type ButtonVariantTypes = "primary" | "line" | "gray" | "blue";
 
 //React.ButtonHTMLAttributes는 버튼 속성에 집중하긴 했지만, 제네릭 타입이다.
 export interface ButtonProps extends React.ButtonHTMLAttributes<HTMLButtonElement> {
-  size: ButtonSizeTypes;
-  variant: ButtonVariantTypes;
+  size?: ButtonSizeTypes;
+  variant?: ButtonVariantTypes;
   children: ReactNode; //자식 노드(텍스트)를 받기 위해 필수.
   onClick?: React.MouseEventHandler<HTMLButtonElement>; //MouseEvent와는 상이
 }
 
 //disabled는 버튼의 기본 속성(따라서 위의 interface에서 명시되어 있지는 않다.)
-const Button = ({ onClick, size, disabled, variant, children }: ButtonProps) => {
+const Button = ({
+  onClick,
+  size = "xlarge",
+  disabled,
+  variant = "primary",
+  children,
+}: ButtonProps) => {
   return (
     <S.DefaultBtn
       onClick={onClick}
diff --git a/src/pages/MyRegisterdShow/MyRegisterdShow.tsx b/src/pages/MyRegisterdShow/MyRegisterdShow.tsx
index 16c5c255..ee6a4708 100644
--- a/src/pages/MyRegisterdShow/MyRegisterdShow.tsx
+++ b/src/pages/MyRegisterdShow/MyRegisterdShow.tsx
@@ -13,7 +13,7 @@ const MyRegisterdShow = () => {
     navigate("/");
   };
 
-  const [isNothing, setIsNothing] = useState<boolean>(false);
+  const [isNothing, setIsNothing] = useState(false);
 
   return (
     <>