"Heisei Harenchi Gakuen Episode 1" is a 1996 original video animation (OVA) that reimagines Go Nagai's classic manga "Harenchi Gakuen" for a modern audience.
The episode introduces Yasohachi Yamagishi and Fukurokōji, two recent university graduates embarking on their teaching careers as the first male instructors at the prestigious all-girls' Harenochi School.