Meguri is a beautiful, big-titted female teacher who teaches health and physical education, beloved by her students. However, her voluptuous figure becomes the object of their desires, which gradually spiral out of control. She is lured into restrooms, blackmailed in club rooms, and gangbanged in classrooms—constantly targeted by her students. Repeatedly ruined by consecutive creampie loads from multiple partners, she becomes nothing more than a pet kept within the classroom. This work depicts an erotic story of relentless big-tit torment, where student desires are justified as part of the curriculum, and the teacher is completely dominated.