[Usohappyaku (Otori)] Bitch Pig Slave Senseis (Osomatsu-san)

An average student uncovers that his two high school teachers are related brothers who once appeared together in a porn video, and he threatens them with exposure. He forces the brothers into degrading sexual training, subjecting them to humiliation, spanking, and forced double‑blowjobs as part of his twisted revenge. The escalating power play turns the classroom into a nightmarish arena of perverse punishment and submission.