Teacher Sayuki falls into a life of submission as her students' personal pet. From the start of each school day, she is targeted for her big tits, enduring relentless bullying and deep-throat abuse. During exams, she writhes silently in pleasure as a hidden vibrator torments her. Fellow teachers forcefully subject her to vibrator sessions, humiliating her as she's repeatedly used and violated. Driven by jealousy, a student intensifies her degradation with brutal, humiliating sex, pushing her to climax after climax in an endless cycle of shame and arousal.