In a high-stakes exhibition match held aboard a luxurious cruise ship, the Seigaku regular players are unexpectedly drawn into a world of corruption and deceit. The event's organizers, a wealthy and influential individual with ties to organized crime, demand that the players intentionally lose the match to satisfy the demands of his illicit gambling empire. Complicating matters further, one of the opposing team's players claims to be Ryoma's brother, adding an air of mystery to an already intense and unpredictable situation.