Kunoichi Ajisai infiltrates the mansion of the ruthless Lord Gamou to rescue kidnapped village girls, but her mission takes a disastrous turn when she is captured and drugged. Subjected to intense aphrodisiac torture and "pleasure training," Ajisai's resolve gradually crumbles. Over time, the once-proud ninja is broken and transformed into Gamou's devoted concubine, fully succumbing to his desires.