Regarding changes to registration information

Can I change my registered nickname?

You can change your nickname information yourself.

After logging in, please proceed from "View/Change Member Information" in My Page.

●Please set the name to [2 characters or more].

●Symbols (* - ., etc.) cannot be used.

●If you use multiple services with your existing ID, you can set a nickname for each service.

Please note that you cannot use strings that are already being used by other customers.

If you are unable to register a nickname using your desired string, please add other characters.

<Caution>
Please access the site using a web browser (Safari/Chrome) when proceeding with the procedure.

- You cannot complete this procedure through the "back number app".

- In-app browsers (Yahoo! JAPAN app/Google app) are not guaranteed to work.

Accessing the site via various social media apps such as X (formerly Twitter), Instagram, and LINE may result in it not functioning correctly.

Other questions regarding "Changing registration information"

• Q.
  Can I change my registered email address?
• Q.
  I can't change my email address because the message "It's already in use" appears.
• Q.
  Can I change my registered address?
• Q.
  Can I change my registered country information?
• Q.
  Can I change my registered phone number?
• Q.
  I made a mistake when registering my date of birth and gender.
• Q.
  What should I do if my last name changes?

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