Ryuudouji Shimon no Inbou

Main Title: Ryuudouji Shimon no Inbou
Official Title: 龍堂寺士門の淫謀
Synonym: 龙堂寺士门的淫谋, 류도우지 시몬의 음모
Type: OVA, 2 episodes
Year: 20.10.2017 until 20.04.2018
Season: Autumn 2017
Original Work: Mink
Direction: Murakami Teruaki
Character Design: Murakami Teruaki
Work: Anime Antenna Iinkai

A former science teacher receives a mysterious recruitment document, inviting him to a prestigious school. However, this school is not what it seems…