Trading card game UNION ARENA (Union Arena) Sakata Gintoki, a Gintama 20th Anniversary Gintama Exhibition attendee bonus. I attended the event on March 11, 2025. It's a rare item as it's an event bonus. It was originally in a bag, but I opened it to check the contents. I will carefully package it to prevent bending during shipping. Also, please understand that this item has been stored by a private individual.