T-cards are Tsutaya’s point cards, and they can actually be used at many stores around Japan (not just Tsutaya) and users earn 1 point for every 200 yen racked up on the card. The cards are issued by many places other than just Tsutaya (mine is a Family Mart T-card), and it’s not unusual for specially branded cards to be released.
And in fact, Granrodeo’s official site has announced that fans can now get an official GR T-card this spring!
If you are the patient type, in-store sales at Tsutaya and Asahiya Books will start on May 14, 2019. There will be a service fee of 500 yen (and possibly additional store charges).
If you’re a little less patient — though you still won’t get the card until May — you can preorder on the T-Fan site starting today (Feburary 19, 2019).
There will also be a card case designed especially for the card, available both online and in the stores. The case is 1352 yen (before tax).
Tsutaya is also offering a bundle of the card, card case, a rubber bracelet and either the limited or normal edition of FAB LOVE, which can ordered through their website or in-store. The special website page for ordering can be found here.