Yukio Kasai (Sometani Shota) is running through the mountains to escape something, when suddenly he is accidentally hit and knocked unconscious. The man driving is Shigeru, a single father who lives nearby in a small rural fishing town. Shigeru then offers Yukio a strange proposal, whilst he recovers he can ‘help repair a boat’. Yukio is however haunted by nightmares and just when he starts to feel comfortable, his tragic past catches up to him with dire results.