Kurutta Kyoutou: Danzai no Gakuen  

狂った教頭 断罪の学園

The narrative revolves around a school where all educators were sexual deviants. A new teacher arrived and, overwhelmed by their desires, succumbed to them all at once. "We too are trapped in this traditional mold" - the teachers remarked. This tale emerged from the Tokyo School of debauchery, lust, and sex education.