Seido Koukan Shidou ~Toaru Gakuenchou no Yokubougeki~

Noriyuki is the principal of a famous school. One day, he accidentally sees Kaori and Kumiko having sex.... Several days later, he calls Kaori to the principal's room. "Anything is wrong these days?" Kaori and Kumiko's sex scene appears on the monitor.... "You'll have to leave the school and Kumiko'll have to quit...." Kaori says, "I don't care about myself, but don't fire Kumiko!" "Ok, show me your sincerity.... Understand that...?"