Seisen Gakuin
English name: Holy Sleazy School
Genres: Hentai
Type: OVA, Episodes: 1
Aired: Jun 25, 2007
Studio: Studio Jam
Source: Original
Rating: Rx - Hentai
Synopsis:
At a school in Japan, a glowing phallus-shaped artifact possesses magical powers that turn innocent girls into raging sex maniacs. When a teacher is seduced by a student, he soon finds himself endowed with a power that the girls cannot resist...

(Source: AniDB)