The target now under scrutiny by the Female Body Torture Research Institute is a woman who attended Yuuki Rina's ultimate humiliation live show, an AV idol overflowing with lust. Merely being present at the event leads to her sudden kidnapping and forced restraint onto an interrogation table. Injected with a powerful aphrodisiac through her anus and subjected to intense torment by various sex toys, she is driven into a hellish pleasure where fear and humiliation intertwine. However, a shocking twist awaits as her true identity is revealed—she is an aristocrat's daughter, a surprising social status that unveils an unexpected turn of events, setting the story into dramatic motion.