A notorious fetish-documentary director presents a hospital consumed by madness and lust. Mao Sena plays an adult nursing-student role, while cool beauty Miharu Kai appears as a nurse. Adult student role-play character Mayoi Sakuraya arrives for a paid clinical trial and hears what sounds like a woman moaning in a back room. Curiosity overcomes her fear, and she steps into a chamber from which there is no escape, entering the carnal feast of the Black Magic Ward.