This is an illustrated book keychain purchased at the Shinsuke Yoshitake Exhibition. It's a keychain from Shinsuke Yoshitake's "Because I'll Open It for You." The front features the cover of the Korean edition of the book, and the back features the cover of the Japanese edition. It has never been used, and has been stored in a bag in a dark place since purchase. Please refrain from purchasing if you are sensitive to the condition, as it is stored by a private individual. No price reduction.