Tsukasa Emi is a strong-willed and justice-driven detective. One day, she gets caught by an organization while trying to save a young man involved in drug crimes. She is injected with a vicious aphrodisiac and targeted at her most hidden part, her asshole. Her sensitivity doubles from shame and humiliation, driving her crazy. The biggest catastrophe orgasm in history strikes Emi. In the end, she is thoroughly broken by pleasure torture and becomes a slave of lust. It is the worst tragedy for a woman.