While making a home visit, H-cup big-breasted teacher Reira is kidnapped and held captive by her student. Could it be her exposed cleavage and defenseless appearance that excessively aroused her pupil's desires? The boy becomes obsessed with Reira's voluptuous naked body, forcefully groping her big ass and massive breasts while aggressively tormenting her. As he toys with her private parts using fingers and sex toys, Reira gradually loses her ability to resist. Eventually, she's brutally raped and creampie fucked. After being repeatedly violated and driven to orgasm over and over, Reira's mind begins to break, transforming her into a lewd bitch who willingly grinds her hips and takes pleasure in being cum-filled through forced breeding.