The new semester begins. On the train to school, Risa encounters a perverted man and brutally beats him before leaving in triumph. At school, Risa rules the classroom alongside her male underlings when a new teacher arrives—the same perverted man she beat on the train. A transfer student also arrives. Risa's father is the school's chairman, and the school's rules are dictated by Risa, placing both students and teachers under her control. The new semester kicks off with Risa fending off the pervert on the train, then whipping and physically inspecting the new staff. Special training includes face-sitting and swimming-breath exercises in school swimsuits, enema squats for strength building, and evading urine peeping and facial holy water dousing in the boys' restroom. The school nurse is a female student in gym shorts who showers others with holy water. Lunchtime features human table chewing sessions. Risa takes the transfer student's anal virginity. Male students jerk off the teacher's feet to earn holy water and academic credits. A new school rule—"cum anytime, anywhere"—is introduced, leading to penis viewing, tasting one's own semen, and an omnibus male masochist school drama.