Two brothers are separated after their parent's divorce. Older brother Koichi (Koki Maeda) lives with his mother (Nene Otsuka) and grandparents in Kagoshima. Younger brother Ryonosuke (Oshiro Maeda) lives with his father (Joe Odagiri) in Fukuoka. Meanwhile, the Kyushu trainline connecting these two cities is nearing completion. A rumor spreads that when the bullet trains first runs (one coming from the north and one coming from south) and at the exact moment the two trains crosses paths energy is released and wishes will be granted to those that witness the event. Koichi hears of the rumor and implements a plan with his younger brother to reunite his family ....