A famous businessman's links with organized crime are looked into by the Zero Division of the Tokyo Police, with the investigation being headed by a highly trained, extremely violent and very beautiful female officer. When not having shoot-outs with the crime syndicate thugs trying to kill her, she spends most of her time in her apartment, wearing lingerie and taking showers. A sub-plot involves the businessman's S&M-obsessed daughter.
Kekko Kamen, the fearless heroine who wears red boots, a red mask, and nothing else, she has an uncanny way of destroying her opponents by stunning them with her private parts and proceeding to kick their butts.
Ichijoji is a street punk who stumbles across Mari and her cat. Mari and Ichijoji immediately fall in love but are chased by both yakuza and corrupt cops.
La Sra. Togashi (Sachiko Hidari) es la viuda de un sargento que fue sometido a un tribunal de guerra y ejecutado hacia finales de la guerra. Como resultado de esto, ella es privada de recibir una pensión del gobierno. Pasan muchos años, y el ejército no le revela las circunstancias de su muerte, por lo que decide comenzar su propia investigación. Realiza entrevistas a varios camaradas de su marido y descubre una historia al estilo de Rashomon; una historia de heroísmo y villanía, cobardía y valor.
