Harenchi Gakuen (ハレンチ学園, lit. "Shameless School") is a Japanese media franchise created by Go Nagai. Harenchi Gakuen was one of the manga serialized in the very first issue of Shueisha's manga magazine Weekly Shōnen Jump.
Harenchi Gakuen is a titular elementary school whose teachers and students are all perverts. Boys peep girls changing. Girls pull up their skirts and show off their panties.