Sakiko Akiyoshi

A detective investigates a series of murders. A possible serial killer might be on a rampage, since they all are in the same vicinity and by the same method, but as the evidence points toward the detective as the prime suspect, a ghost in red follows him, and he begins to question his identity. His realization of what seems to have really happened results in something much more sinister and larger in scope, and it leaves his psyche scarred.

Tokyo is a dark technopolis, a city of faceless chrome and cold marble. It is ruled by Nogi, a yakuza boss specializing in drugs and murder. He gained absolute power by executing the former boss and marrying his daughter, Chiaki. Only the mysterious Ikko, Chiaki's half-sister threatens him. Inspired by a legendary hit-woman, Ikko calls herself the Black Angel and plans to wash away her father's murderer with a deluge of blood.