Yuuki, a seventeen-year-old professional death game player who survives lethal competitions as her career, has just overcome the thirty-year-wall jinx, a well-known phenomenon that drastically reduces the survival rate of veteran players. The movie continues directly from this point in the series, sending Yuuki to a remote island in the middle of the ocean. She finds herself in a new deadly game called Cloudy Beach, joined by seven other participants. Among these players is someone Yuuki already knows, a familiar face from her past games, which adds an unpredictable layer of tension to an already dangerous situation. The protagonist is known for her calm, calculating nature, treating each game as a business transaction rather than a nightmare, though she possesses a pragmatic ruthlessness when her own survival is on the line. The film presents a direct canonical sequel to the television series rather than an optional side story, forcing Yuuki to navigate tactical alliances and inevitable betrayals on the isolated island battlefield. This installment also reintroduces characters from earlier narrative arcs, including Airi, a player who previously survived the Candle Woods game and has since become a veteran herself, now crossing paths with Yuuki once again under the lethal rules of Cloudy Beach.