Satoko, a resident of the once-famous hot spring town of Minami, discovers a new hot spring while walking her dog. The discovery, however, occurs on a construction site owned by the neighboring city, Kita. This leads to a dispute over ownership: does the hot spring belong to Minami, the discoverer, or Kita, the landowner? To settle the conflict, the two cities agree to a curling match. Satoko, as the hot spring's founder, becomes the leader of Minami's team, despite her and her friends having no prior knowledge of the sport.
