This is a complete set of all 15 illustration card collection types purchased at the Demon Slayer: Kimetsu no Yaiba, Koyoharu Gotouge Original Art Exhibition (Roppongi). It's a valuable item that is no longer available. It is an unopened item. I purchased it as a collector's item and treasured it. I couldn't bear to open even the outer bag, and it has been stored in a dark place for many years in completely unopened condition. I am happy that Demon Slayer is gaining popularity again with the release of the movie: Mugen Castle Arc. The cards feature beautiful gold foil stamping of the main characters from Demon Slayer, such as Tanjiro, Giyu, Rengoku, and Kocho.