At a certain school, the female students discover their homeroom teacher's unique sexual fetish. Learning this secret, they begin exploiting his weakness, escalating their actions further and further. Using test answers and grades as leverage, the girls gradually make it a habit to torment him. Initially filled with guilt, the teacher eventually starts deriving pleasure from their abuse, becoming so dependent that he can't function without it. The students completely dominate him—forcing a collar around his neck, making him lick their sandals against his will, and compelling him to inhale the scent of their bare legs. When displeased, they slap him with their bare feet and punish him accordingly. As this relationship continues, they push the teacher closer and closer to the edge. By the time graduation arrives, what extreme torment will they have in store for him?