The teacher who forced three underperforming students to attend mandatory physical education remedial classes was known throughout school as a notorious pervert. Rumors about his inappropriate behavior, such as sniffing students' bloomers after school, were widespread. However, wanting to graduate, the students had no choice but to attend the sessions. Then one day, the girls witnessed a shocking scene beyond imagination. Unable to endure it any longer, the three strong-willed girls finally decided to fight back.