Discipline Zero
Japanese title: DISCIPLINE 零
Alternative titles: Discipline Rei
Type: OVA
Source: Visual novel
Episodes: 2
Status: Finished Airing
Aired: Jan 29, 2010 to Jun 25, 2010
Duration: 28 min per ep
Rating: Rx - Hentai
Studios: Studio 9 Maiami
Producers: White Bear, Mediabank
Genres: Hentai

Based on the game by Active. 

The hit series Discipline is revived with this new original story set prior to the coming of Hayami Takuro, protagonist of the first series.

Morimoto Leona and Otokawa Saori are newly arrived boarding students at St. Alcadia Academy. Morimoto Leona desires to subjugate every person within the school, severely punishing those who are of no use to her. Even the teachers are not spared. Fellow boarders Yuuki, Ruri and Maiko, who are oblivious of the situation, fall prey to the limitless sexual desires of the male students.