Makoto and his family awaken to find themselves confined in a hospital room with no clear way out. A console game appears before them, its rules pulling everyone into a series of escalating challenges reminiscent of a notorious board game from years past. As play begins, the group must navigate each round together, uncovering shifting alliances and unexpected personal revelations. The first episode establishes the tense atmosphere and the strange hold the game exerts over its unwilling participants.