Kimura, a young man who was adopted and living a peaceful life with his family, returns home one night to discover his wife and child have been killed by three underage burglars. In a moment of shock and rage, he kills two of the intruders. The legal system, however, judges his actions as excessive self-defense; Kimura is arrested and sentenced to prison, losing the life he had built. After a decade behind bars, he is finally released. Emptied of everything but his unresolved fury, Kimura’s only remaining purpose is to locate and exact vengeance upon the third young criminal, the one who survived and is still alive. The story is a seinen action manga that follows this ex-convict's grim path through a world of crime and punishment, driven solely by the need for retribution.