※Instant purchase welcome※ Thank you very much for viewing. This is the extra-thick rubber keyholder (Kyojuro Rengoku) that came with the popcorn bag purchased during the Demon Slayer: Kimetsu no Yaiba Mugen Train Revival Screening. After purchasing and checking the item, I immediately put it back in its original bag. There is a stain like oil on the cardboard that was included in the bag from the beginning (see image 2). Please consider purchasing only if you can accept this. It will be shipped via Yu-Packet Post Mini. Thank you.