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 [English](README.md) | **日本語**
 
+![M5Authenticatorの概要](docs/assets/m5authenticator-overview.jpg)
+
 M5Authenticatorは、**M5StickS3**で使うスタンドアロンのTOTP認証器です。TOTP認証情報はDevice上の暗号化Vaultに保存し、Vault Master Key（VMK）はUnlock中のみRAMに保持します。Provisioning、アカウント管理、Firmware更新、Recoveryには、ローカル処理を前提としたWebアプリを使用します。
 
 最新安定版の**Desktop Chrome**とWeb Serialで、Hosted Webアプリを利用できます。
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 **English** | [日本語](README.ja.md)
 
+![M5Authenticator overview](docs/assets/m5authenticator-overview.jpg)
+
 M5Authenticator is a standalone TOTP authenticator for **M5StickS3**. It stores TOTP credentials in an encrypted Vault on the Device, keeps the Vault Master Key (VMK) only in RAM while unlocked, and uses a local-only Web app for provisioning, account management, firmware updates, and recovery.
 
 Use the hosted Web app with the latest stable **Desktop Chrome** and Web Serial:
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