Investigator Yuna Mitake, along with her partner Takahashi, infiltrates a criminal hideout dealing in illegal aphrodisiacs. Just as they are about to obtain solid evidence, Takahashi is captured. Yuna is taken in his place and subjected to intense pleasure torture. After barely escaping the hideout, she returns with Takahashi only to face an unexpected turn of events. Though Takahashi acted tough, he ends up cumming violently while pissing himself uncontrollably. His depraved, masochistic behavior triggers even more extreme pleasure torture, leading to repeated orgasms accompanied by involuntary urination.