The transfer student [Nagano Suzune], who was being harassed by delinquents, was helped by her homeroom teacher Saito. 'If you have any troubles, come to me anytime,' Saito said, comforting Nagano. However, he was a problematic teacher who pretended to care for his students while regularly engaging in voyeurism and sexual harassment of female students. He set his sights on the diligent and quiet Nagano, using aphrodisiacs to caress her crotch. Although she resisted out of disgust, her body inexplicably lost control, leading to involuntary urination and orgasm. Saito used this situation to blackmail her, turning Nagano into an aphrodisiac-addled sex slave, training her as a flesh toilet.
