Suffering from poor mental health and unable to continue with his work at a publishing company in Tokyo, Kazuo (Masahiro Higashide) decides to move back to his hometown of Hakodate together with his wife Junko (Nao). There, he starts regularly seeing psychiatrist Masako (Shigeru Muroi), who advises him to take up jogging as a form of treatment for his condition. Kazuo adopts the activity into his daily routine and, rain or shine, he persistently goes on his jogs. Gradually, as he comes to communicate with the young people he meets on his outings, something begins to change.