About the “Grateful Yesterdays Tour 2026”

How to change from the "silver key" 330 yen course to the 550 yen course

Applications for the [one room member 2nd pre-sale], which will be accepted from Friday, December 5, 2025, are open to both gold key (annual plan) and silver key (monthly plan) members.

We revised our membership fees in June 2025, and Silver Key members can only apply if they are registered for the revised "550 yen course."

Members who were enrolled in the 330 yen course before the revision will not be automatically switched to the 550 yen course.

If you wish to change to the 550 yen course, please proceed via the URL below.

■ Information regarding course changes

https://backnumber.info/feature/course_change

*If you are considering changing your course, please complete the procedure well in advance of the application period.

*If you switch from the 330 yen plan to the 550 yen plan in the middle of the month, you will not be charged twice. You will be charged 330 yen in the month of the change, and 550 yen from the following month onwards.

*SP Mode payment is not available for the 550 yen course. We apologize for the inconvenience, but please change to another payment method such as d払い.

Other questions about "Grateful Yesterdays Tour 2026"

• Q.
  [one room Members Pre-sale] How to check application status and lottery results
• Q.
  Ticket reception/electronic ticket inquiries
• Q.
  Regarding online pre-sale of tour merchandise
• Q.
  Tour merchandise sales at venues and pickup service
• Q.
  Access to each venue, parking, shuttle buses, etc.
• Q.
  Customers using wheelchair spaces

back