Hades is a criminal organization that the Investigation Bureau is investigating to crack down on. Ai Jojima of the Secret Intelligence Division is in the lead. She learns from an informant the location of Hades's hideout and infiltrates it. However, mysterious people are waiting for her there. Ai is forced to give him an aphrodisiac, which drives her crazy. She is then subjected to brutal torture, becoming addicted to pleasure and transforming into someone who can devour a man's penis.