diff --git a/.github/workflows/call-build.yml b/.github/workflows/call-build.yml
index 52968ac8..f7944546 100644
--- a/.github/workflows/call-build.yml
+++ b/.github/workflows/call-build.yml
@@ -29,19 +29,10 @@ jobs:
       - name: Setup Android SDK
         uses: android-actions/setup-android@v2
 
-      - name: Restore bundle cache
-        uses: actions/cache@v3
+      - name: Setup Ruby
+        uses: ruby/setup-ruby@cd48c8e22733480b66887b42bfeb6c0b88ea1a56
         with:
-          path: vendor/bundle
-          key: bundle-${{ hashFiles('**/Gemfile.lock') }}
-
-      - name: Restore gradle cache
-        uses: actions/cache@v3
-        with:
-          path: |
-            ~/.gradle/caches
-            ~/.gradle/wrapper
-          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle', '**/*.gradle.kts') }}
+          bundler-cache: true
 
       - name: Create release keystore
         run: echo "${{ secrets.RELEASE_KEYSTORE }}" | base64 -d > gradle/keystore/release.jks
diff --git a/README-JA.md b/README-JA.md
index 6badcc90..3e37295b 100644
--- a/README-JA.md
+++ b/README-JA.md
@@ -66,13 +66,14 @@ FANBOX には Web 版しかなく、スマートフォンで投稿を閲覧す
   - 画像 / ファイル / GIF 形式でダウンロード
   - 投稿に含まれるすべての画像をダウンロード
   - ファンカードのダウンロード
+  - クリエイター単位での一括ダウンロード機能
+- 広告
+  - AdMob Native 広告
 
 #### Not Ready...
 
-- クリエイター単位での一括ダウンロード機能
 - Pixiv 連携機能
 - ウィジェット機能
-- 広告系全般
 
 ## Architecture
 アプリのアーキテクチャ図を示します。 だいぶ複雑になっているので、一部のモジュールや依存関係は省略し、概略を掴める形にしています。
@@ -120,6 +121,8 @@ graph LR
 
 ## Contribute
 
+セットアップはとても簡単で、このリポジトリをクローン氏 `bundle install` するだけです。このアプリは [daifuku](https://github.com/cookpad/daifuku) と [Puree](https://github.com/cookpad/puree-kotlin) を用いてログ基盤を作成しています。詳しくはライブラリのドキュメントまたは `./scripts/daifuku` 以下をご覧ください。
+
 このアプリは Gradle の Convention Plugins を用いてビルドのロジックを共通化しており、`build-logic` というモジュールに全てのロジックが記述されています。このアプローチに関しては、[nowinandroid](https://github.com/matsumo0922/nowinandroid/tree/main/build-logic) をご覧ください。
 
 何か不具合を発見したり機能を改善したい場合、機能を新たに開発したい場合は、まず issue を書いてください。その上であなた自身を assign し、開発に取り組んでください。pull request はいつでも歓迎です :smile:
diff --git a/README.md b/README.md
index c1c774e0..73859843 100644
--- a/README.md
+++ b/README.md
@@ -68,13 +68,14 @@ There was only a web version of FANBOX, which was a bit inconvenient for viewing
   - Download in image/file/GIF format.
   - Download all images included in a post.
   - Download fan cards.
+  - Bulk download function for individual creators.
+- Ads
+  - AdMob Native Ads
 
 #### Not Ready...
 
-- Bulk download function for individual creators.
 - Pixiv integration feature.
 - Widget functionality.
-- All advertising-related features.
 
 ## Architecture
 Shows the architecture diagram of the app. It's quite complex, so I've omitted some modules and dependencies to give you an overview.
@@ -122,11 +123,13 @@ graph LR
 
 ## Contribute
 
+Setup is very easy, just clone this repository and `bundle install`. This app uses [daifuku](https:github.comcookpaddaifuku) and [Puree](https:github.comcookpadpuree-kotlin) to create the log infrastructure. For more information, please see the library documentation or `./scripts/daifuku`.
+
 This app uses Gradle's Convention Plugins to standardize the build logic, and all the logic is written in a module called `build-logic`. For information on this approach, see [nowinandroid](https://github.com/matsumo0922/nowinandroid/tree/main/build-logic).
 
 If you find a bug, want to improve a feature, or want to develop a new feature, please first write an issue. Then assign yourself and work on the development. Pull requests are always welcome :smile:
 
-This app is monetized using AdMob. When building manually from GitHub, you need to write the AdMob App ID in `local.properties`. By default it contains a dummy ID, which causes it to crash on startup. Alternatively, please delete the AdMob code and build the app. In addition, various IDs are described in `local.properties`. See `appbuild.gradle.kts` or `PixiViewConfig` for details.
+This app is monetized using AdMob. When building manually from GitHub, you need to write the AdMob App ID in `local.properties`. By default it contains a dummy ID, which causes it to crash on startup. Alternatively, please delete the AdMob code and build the app. In addition, various IDs are described in `local.properties`. See `app/build.gradle.kts` or `PixiViewConfig` for details.
 
 ## License