Thank you for your continued support of back number official fan club, "one room".

Regarding the membership card sent upon new membership registration,

one room membership card is a special key-shaped keychain with each customer's initials handcrafted onto it.

Normally, it takes about 2 to 2.5 months for your order to be shipped, but currently, it is taking longer than usual.

If you completed your membership registration on or after November 14, 2025 (Friday), please check your current delivery date on the website below.
https://backnumber.info/faq/detail/106

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*Please note that items that are not delivered due to incomplete registration or delays in submitting a change of address will not be resent.

*If your package does not arrive despite the address being correct, there is a reshipping period. Please check the deadline on the website above.

*If you need to show your membership card, please bring your smartphone and show your membership number after logging in to one room website.

Please use this as it will serve as your membership card.

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We sincerely apologize for any inconvenience or trouble this may cause our customers.

We appreciate your understanding.

We hope you will continue to support back number official fan club, "one room."