To enhance security, we plan to launch multi-factor authentication using email when logging in to the Mina Search or other library services after Spring 2026. We appreciate your understanding and cooperation.

Register a valid email address

For multi-factor authentication, in addition to your user ID and password, you will need a one-time authentication code that will be sent to you by email when logging in. Please register a valid email address that you can refer to when using the NDL web services so that you can receive the authentication code required to log in.
If you forget your password and have not registered an email address, you will not be able to reset your password yourself.

Please also make sure that your settings allow you to receive emails from “@ndl.go.jp”.
If you cannot receive the authentication code, you will be unable to log in to the Mina Search and other systems while off-site.

Please see How to Register Your Email Address below for specific instructions.

How to Register Your e-mail Address

1. Click the Login icon in the upper right corner of the Mina Search top page.
2. Enter your user ID and password in the Login dialog.
3. After logging in, click the My Account icon in the upper right corner of the page to display the My Account and Settings page. Then, click the Review or Update User Information button.
4. Click the Change button displayed on the right of the email address line.
5. Enter your new e-mail address in the New Email Address field and click the Update button at the bottom of the page.
6. A confirmation e-mail will be sent to the e-mail address you entered. Click on the URL in the body of the email to confirm your new email address.