Professional killer Ken is trying to break away from the yakuza. Taking up work at a local motorcycle shop, he forges a new life under the motherly eye of Yoko, an older woman who owns the shop. However, Ken's dark past isn't letting him go that easily. Akira, Ken's ruthless mentor and himself an assassin, has been coming around and pressuring Ken to return to the family. Together with orphaned teenager Tsuyoshi, Ken decides to take to the road and settle matters in the only way he knows - by the trigger of his gun.