diff --git a/.nvmrc b/.nvmrc
new file mode 100644
index 0000000..a45fd52
--- /dev/null
+++ b/.nvmrc
@@ -0,0 +1 @@
+24
diff --git a/.storybook/main.ts b/.storybook/main.ts
index 098d7f8..d5d11ee 100644
--- a/.storybook/main.ts
+++ b/.storybook/main.ts
@@ -6,11 +6,11 @@ import type { StorybookConfig } from "@storybook/nextjs-vite";
 const require = createRequire(import.meta.url);
 
 const config: StorybookConfig = {
-  stories: ["../src/**/*.stories.@(js|jsx|mjs|ts|tsx)"],
-  addons: [
-    "@chromatic-com/storybook",
-    "@storybook/addon-docs",
+  stories: [
+    "../src/**/*.mdx",
+    "../src/**/*.stories.@(js|jsx|mjs|ts|tsx)",
   ],
+  addons: ["@chromatic-com/storybook", "@storybook/addon-docs"],
   framework: "@storybook/nextjs-vite",
   staticDirs: ["../public"],
 
diff --git a/.storybook/preview.ts b/.storybook/preview.ts
index 557ab73..633622c 100644
--- a/.storybook/preview.ts
+++ b/.storybook/preview.ts
@@ -1,7 +1,11 @@
 import type { Preview } from "@storybook/nextjs-vite";
+import { INITIAL_VIEWPORTS } from "storybook/viewport";
 
 const preview: Preview = {
   parameters: {
+    viewport: {
+      options: INITIAL_VIEWPORTS,
+    },
     controls: {
       matchers: {
         color: /(background|color)$/i,
diff --git a/.vscode/workspace.code-snippets b/.vscode/workspace.code-snippets
index 3794ad9..a62cea1 100644
--- a/.vscode/workspace.code-snippets
+++ b/.vscode/workspace.code-snippets
@@ -2,7 +2,7 @@
     "StoryBook": {
         "prefix": ["!sb", "!storybook"],
         "body": [
-            "import type { Meta, StoryObj } from '@storybook/react-vite';\n",
+            "import type { Meta, StoryObj } from '@storybook/nextjs-vite';\n",
 
             "const meta: Meta<typeof ${1:Component}> = {",
             "    component: ${1:Component},",
diff --git a/src/entities/feed/ui/FeedCard.stories.tsx b/src/entities/feed/ui/FeedCard.stories.tsx
new file mode 100644
index 0000000..d241a77
--- /dev/null
+++ b/src/entities/feed/ui/FeedCard.stories.tsx
@@ -0,0 +1,29 @@
+import { FeedCard } from "./FeedCard";
+import type { Meta, StoryObj } from "@storybook/nextjs-vite";
+import { expect, userEvent, within } from "storybook/test";
+
+const meta: Meta<typeof FeedCard> = {
+  component: FeedCard,
+};
+
+export default meta;
+type Story = StoryObj<typeof FeedCard>;
+
+export const Default: Story = {
+  args: {},
+  play: async ({ canvasElement }) => {
+    const canvas = within(canvasElement);
+    const likeButton = canvas.getByRole("button", { name: "좋아요" });
+
+    const heartIcon = likeButton.querySelector("svg") as SVGSVGElement;
+    await userEvent.click(heartIcon);
+
+    const unlikeButton = canvas.getByRole("button", { name: "좋아요 취소" });
+    await expect(unlikeButton).toBeInTheDocument();
+
+    await userEvent.click(heartIcon);
+
+    const likeButtonAgain = canvas.getByRole("button", { name: "좋아요" });
+    await expect(likeButtonAgain).toBeInTheDocument();
+  },
+};
diff --git a/src/shared/ui/badge/Badge.mdx b/src/shared/ui/badge/Badge.mdx
new file mode 100644
index 0000000..bacc144
--- /dev/null
+++ b/src/shared/ui/badge/Badge.mdx
@@ -0,0 +1,70 @@
+import * as BadgeStories from "./Badge.stories";
+import {
+  Meta,
+  Canvas,
+  Controls,
+  Story,
+  Description,
+  ArgTypes,
+  Source,
+} from "@storybook/addon-docs/blocks";
+
+<Meta of={BadgeStories} />
+
+# Badge
+
+상태나 카테고리를 나타내는 작은 라벨 컴포넌트입니다.
+
+<Canvas of={BadgeStories.Default} />
+
+## Props
+
+<Controls />
+
+## Examples
+
+### Variants
+
+`Badge` 컴포넌트는 5가지 스타일(`primary`, `secondary`, `success`, `danger`,`warning`)을 지원합니다.
+
+<Canvas of={BadgeStories.Variants} />
+
+<Source
+  language="tsx"
+  code={`
+    <Badge variant="primary">primary</Badge>
+    <Badge variant="secondary">secondary</Badge>
+    <Badge variant="success">success</Badge>
+    <Badge variant="danger">danger</Badge>
+    <Badge variant="warning">warning</Badge>
+  `}
+/>
+
+<br />
+
+### Sizes
+
+`Badge` 컴포넌트는 3가지 크기(`sm`, `md`, `lg`)를 지원합니다.
+
+<Canvas of={BadgeStories.Sizes} />
+
+<Source
+  language="tsx"
+  code={`
+    <Badge size="small">Small</Badge>
+    <Badge size="medium">Medium</Badge>
+    <Badge size="large">Large</Badge>
+  `}
+/>
+
+<br />
+
+## 사용 가이드 (Usage)
+
+`children` prop을 통해 뱃지 텍스트를 전달합니다.
+
+```tsx
+<Badge variant="primary" size="medium">
+  뱃지 텍스트
+</Badge>
+```
diff --git a/src/shared/ui/badge/Badge.stories.tsx b/src/shared/ui/badge/Badge.stories.tsx
new file mode 100644
index 0000000..a116bc5
--- /dev/null
+++ b/src/shared/ui/badge/Badge.stories.tsx
@@ -0,0 +1,38 @@
+import { Badge } from "./Badge";
+import type { Meta, StoryObj } from "@storybook/nextjs-vite";
+
+const meta: Meta<typeof Badge> = {
+  title: "design-system/Badge",
+  component: Badge,
+};
+
+export default meta;
+type Story = StoryObj<typeof Badge>;
+
+export const Default: Story = {
+  args: { children: "뱃지입니다." },
+};
+
+export const Variants: Story = {
+  args: { children: "variants" },
+  render: () => (
+    <div style={{ display: "flex", flexDirection: "row", gap: "10px" }}>
+      <Badge variant="primary">primary</Badge>
+      <Badge variant="secondary">secondary</Badge>
+      <Badge variant="success">success</Badge>
+      <Badge variant="danger">danger</Badge>
+      <Badge variant="warning">warning</Badge>
+    </div>
+  ),
+};
+
+export const Sizes: Story = {
+  args: { children: "size" },
+  render: () => (
+    <div style={{ display: "flex", flexDirection: "row", gap: "10px" }}>
+      <Badge size="large">Large</Badge>
+      <Badge size="medium">Medium</Badge>
+      <Badge size="small">Small</Badge>
+    </div>
+  ),
+};
diff --git a/src/shared/ui/header/Header.stories.tsx b/src/shared/ui/header/Header.stories.tsx
new file mode 100644
index 0000000..0f6f47d
--- /dev/null
+++ b/src/shared/ui/header/Header.stories.tsx
@@ -0,0 +1,48 @@
+import { Header } from "./Header";
+import type { Meta, StoryObj } from "@storybook/nextjs-vite";
+import { expect, userEvent, within } from "storybook/test";
+
+const meta: Meta<typeof Header> = {
+  title: "shared/Header",
+  component: Header,
+  parameters: {
+    layout: "fullscreen",
+    nextjs: {
+      appDirectory: true,
+      navigation: {
+        pathname: "/",
+      },
+    },
+  },
+};
+
+export default meta;
+type Story = StoryObj<typeof Header>;
+
+export const Desktop: Story = {};
+
+export const Mobile: Story = {
+  globals: {
+    viewport: {
+      value: "iphone12",
+      isRotated: false,
+    },
+  },
+  play: async ({ canvasElement }) => {
+    const canvas = within(canvasElement);
+
+    const menuButton = canvas.getByRole("button", { name: "메뉴 열기" });
+
+    await expect(menuButton).toBeInTheDocument();
+
+    await userEvent.click(menuButton);
+
+    const closeButton = canvas.getByRole("button", { name: "닫기" });
+
+    await expect(closeButton).toBeVisible();
+
+    await userEvent.click(closeButton);
+
+    await expect(menuButton).toBeInTheDocument();
+  },
+};