Tsukioka Emi is a strong-willed investigator with a strong sense of justice. One day, she is captured by an organization while trying to help a young man involved in a drug crime. She is injected with a deadly aphrodisiac and her anus, the part she most wants to hide, is targeted. Her sensitivity doubles due to the shame and humiliation, and she goes crazy. Emi is hit by the greatest catastrophic orgasm in history. In the end, she is thoroughly corrupted by pleasure torture and becomes a lustful slave. It is the worst tragedy of a woman's life.