Do you have someone you want to kill no matter what? Do you want to kill someone no matter what? Fukuoka is a peaceful city on the outside, but crime is spreading in secret. In the fierce battle zone of the killer industry, there are killers who specialize in killing killers and even such urban legends. Killers, detectives, revenge agents, intelligence dealers, torturers, when the stories of men engaged in the dark industry are woven together, a killer who specializes in killing killers appears..