Because Earth's climate crisis intensifies, humanity has pioneered advanced technology to relocate people to the Moon. Tomura Sawyer works as a courier in the upper regions, carefully saving every coin for his younger brother Haru, who suffers from Smoky Moon Disease—a sickness born of the smoke and pollution that drifts up from the lower districts. The two siblings dream of moving higher, where cleaner air could heal Haru"s condition.
Tomura takes a bold risk to achieve the impossible: he enters the televised competition "Run for Money," determined to outlast every other contestant even though he lacks the essential Chrono Bracelet. Producer Harvest notices his unwavering resolve, gifts him the bracelet, and grants him a spot in the game. In this grandified version of Tag, Tomura must endure longer than anyone else while evading contact with the Hunters who roam the arena. His hope fuels sprint, and the crowd watches as his determination turns into a trail across the arena.
