This applies to users who set up an authentication application during the initial two-factor authentication setup.
1. When logging in, after entering your ID (email address) and password, the following one-time code (authentication code) entry screen will appear.
2. Open the authentication app on your smartphone and check the 6-digit one-time code displayed in the enechain section.
3. On the screen above, enter the 6-digit one-time code you obtained in the "Enter one-time code" field, then click "Continue" to complete the login.