hen zemi
変ゼミ, also known as Abnormal Physiology Seminar
A 2006 seinen manga by TAGRO, serialized in Kodansha's Morning 2. It is a remake of an earlier TAGRO work, 2004's Hentai Seiri Seminar (変態生理ゼミナール). Hen Zemi was later adapted into a 2010 OVA, and 2011 anime series, both produced by Xebec.