A mysterious girl, Shiori, moves into a house shared by recovering online game addicts. Taking control of her new life in the shared house, Shiori introduces Ticket, a system of cards she has designed to make it easier for roommates to trade favors around the house. Forbidden to access the internet, or any kind of games, the bored roommates start to discover new ways to enjoy Ticket, including exchanging it, betting it, and cashing it. Before long, they become Ticket addicts, as Shiori had planned from the beginning. The boyfriend of another roommate, Mutoh, suspects Shiori’s plans for Ticket. However, Mutoh has his own plan for a very rare online game weapon that is held in the possession of one of the roommates.