Google Authenticator Migration Guide (TOTP)
1. Migrating Google Authenticator(TOTP)
If you register your Google Workspace account (@keio.jp) in Google Authenticator, logging out of that account will make it impossible to log back in unless you have set up an alternative authentication method.
It is highly recommended to select "Use Authenticator without an account".
For explanations regarding the images in each step, please refer to the text provided to the right of or directly below the respective image.