Collaboration item between IDEYA COFFEE and "I've Got a Disease That Will Kill Me If I Can't Debut"! ※ Munday, no logo A deluxe set of keychains featuring the members as cafe staff! With ball chain This is a limited-edition item available only through online reservations, and cannot be purchased at the cafe. Originally, some air is trapped in the protective film on the back. There is no problem with the product. If purchased individually, it is 1200 yen per piece.