diff --git a/packages/emotion/package.json b/packages/emotion/package.json
deleted file mode 100644
index 287b96c..0000000
--- a/packages/emotion/package.json
+++ /dev/null
@@ -1,60 +0,0 @@
-{
-  "name": "@r2wc/emotion",
-  "version": "0.1.0",
-  "description": "Easily integrate Emotion with R2WC.",
-  "homepage": "https://www.bitovi.com/open-source/react-to-web-component",
-  "author": "Bitovi",
-  "license": "MIT",
-  "keywords": [
-    "React",
-    "Web Component",
-    "Emotion"
-  ],
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/bitovi/react-to-web-component.git"
-  },
-  "type": "module",
-  "main": "./dist/emotion.cjs",
-  "module": "./dist/emotion.js",
-  "types": "./dist/emotion.d.ts",
-  "exports": {
-    ".": {
-      "require": "./dist/emotion.cjs",
-      "import": "./dist/emotion.js",
-      "types": "./dist/emotion.d.ts"
-    },
-    "./package.json": "./package.json"
-  },
-  "files": [
-    "dist",
-    "src"
-  ],
-  "scripts": {
-    "typecheck": "tsc --noEmit",
-    "eslint": "eslint .",
-    "prettier": "prettier --check .",
-    "depcheck": "depcheck .",
-    "dev": "vite",
-    "test": "vitest",
-    "test:ci": "vitest run",
-    "test:coverage": "vitest run --coverage",
-    "clean": "rm -rf tsconfig.tsbuildinfo dist",
-    "build": "vite build"
-  },
-  "dependencies": {
-    "@r2wc/core": "^1.0.1"
-  },
-  "devDependencies": {
-    "@emotion/cache": "^11.11.0",
-    "@emotion/react": "^11.11.1",
-    "@types/react": "^18.0.0",
-    "@types/react-dom": "^18.0.0"
-  },
-  "peerDependencies": {
-    "@emotion/cache": "^11.0.0",
-    "@emotion/react": "^11.0.0",
-    "react": "^18.0.0",
-    "react-dom": "^18.0.0"
-  }
-}
diff --git a/packages/emotion/src/emotion.test.tsx b/packages/emotion/src/emotion.test.tsx
deleted file mode 100644
index 9f07e5d..0000000
--- a/packages/emotion/src/emotion.test.tsx
+++ /dev/null
@@ -1,10 +0,0 @@
-import matchers from "@testing-library/jest-dom/matchers"
-import { describe, it, expect } from "vitest"
-
-// import { withCacheProvider } from "./emotion"
-
-expect.extend(matchers)
-
-describe("@r2wc/emotion", () => {
-  it.todo("works")
-})
diff --git a/packages/emotion/src/emotion.tsx b/packages/emotion/src/emotion.tsx
deleted file mode 100644
index 77ccd7f..0000000
--- a/packages/emotion/src/emotion.tsx
+++ /dev/null
@@ -1,28 +0,0 @@
-import createCache from "@emotion/cache"
-import { CacheProvider } from "@emotion/react"
-import { useMemo } from "react"
-
-import { R2WCBaseProps } from "@r2wc/core"
-
-export function withCacheProvider<Props>(
-  Component: React.ComponentType<Props>,
-  key: string = "rtwc",
-): React.FC<Props & R2WCBaseProps> {
-  const ComponentWithStyleProvider: React.FC<Props & R2WCBaseProps> = ({
-    container,
-    ...props
-  }) => {
-    const cache = useMemo(() => createCache({ key, container }), [container])
-
-    return (
-      <CacheProvider value={cache}>
-        <Component
-          {...(props as JSX.IntrinsicAttributes & Props)}
-          container={container}
-        />
-      </CacheProvider>
-    )
-  }
-
-  return ComponentWithStyleProvider
-}
diff --git a/packages/emotion/tsconfig.json b/packages/emotion/tsconfig.json
deleted file mode 100644
index 19ac5f0..0000000
--- a/packages/emotion/tsconfig.json
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "extends": "../../tsconfig.react.json",
-  "include": ["src"]
-}
diff --git a/packages/emotion/vite.config.ts b/packages/emotion/vite.config.ts
deleted file mode 100644
index 30d8299..0000000
--- a/packages/emotion/vite.config.ts
+++ /dev/null
@@ -1,35 +0,0 @@
-/// <reference types="vitest" />
-import react from "@vitejs/plugin-react"
-import { defineConfig } from "vite"
-import dts from "vite-plugin-dts"
-
-// https://vitejs.dev/config/
-export default defineConfig({
-  build: {
-    lib: {
-      entry: "src/emotion.tsx",
-      formats: ["es", "cjs"],
-    },
-    rollupOptions: {
-      external: [
-        "react",
-        "@emotion/cache",
-        "@emotion/react",
-        "react/jsx-runtime",
-        "@r2wc/core",
-      ],
-    },
-  },
-  plugins: [
-    dts({
-      exclude: ["src/**/*.test.*"],
-      rollupTypes: true,
-    }),
-    react(),
-  ],
-  test: {
-    environment: "jsdom",
-    restoreMocks: true,
-    mockReset: true,
-  },
-})