Ready to get a ticket to the Assassins' Exhibition of the Century, the Sakamoto Supermarket participates in clandestine auctions online. There, it was without counting on a mysterious bidder who comes to play the troubles! The fight degenerates, and the temperature rises as fast as the price of the ticket... The exhibition finally opens its doors, marking the beginning of a fierce struggle between the Sakamoto Supermarket, the Slur band and the Order!