Yuri, a married woman working as a teacher at the same school as her husband, is adored by many students for her strict yet kind demeanor. However, the delinquent student, Yano, always acts defiantly towards her. When Yano cheats on a test, Yuri reprimands him sternly, eventually slapping him after a heated exchange. Exposed for cheating in front of other students and scolded by Yuri, Yano develops resentment towards her and hatches a plan to take revenge, using female students as pawns...