Amidst a school dominated by twisted authority, three young women—Rin, Yuzu, and Mei—find their dignity stripped as cruel instructors bind them in chains of humiliation. Their defiance awakens raw desire, each forced into intense, degrading acts that blur agony and pleasure. Through torment and submission, their wills break, bodies entwined in an unforgiving spiral of punishment and dark ecstasy, revealing a disturbing union of pain and power.