One night, Manda Ginjiro a moneylender in the Minami district of Osaka, hears a gunshot echoing in an alleyway. The shooter is Yojiro Todoroki , one of Ginjiro's clients. Todoroki entrusts Ginjiro with his notebook, which he has been holding onto with great care, and runs out of steam. From that day on, a suspicious shadow begins to haunt Ginjiro. According to Hideo Sawaki, a bigwig in Minami, an organization is trying to kill Ginjiro.