On the day of the school festival, Junichi Hashiba and Yukana Yame's class cafe is bustling. While taking a break, Yukana learns of an intriguing urban legend surrounding the festival's after-party. The legend suggests that couples sharing the final dance will be bound as eternal lovers. However, as the rumor spreads, forces conspire to keep Junichi and Yukana from dancing together. Will their connection withstand the interference, or will external influences tear them apart before they can share that pivotal last dance?