Saimin Jutsu Zero
Japanese title: 催眠術ZERO
Type: OVA
Episodes: 2
Source: Visual novel
Genres: Hentai
Studios: Studio Eromatick
Producers: Milky Animation Label, MS Pictures
Duration: 21 min per ep
Rating: Rx - Hentai

Murakoshi Shinta appears to be just a doctor at a school, but secretly he has been taking advantage of his position to hypnotize any female student he likes. Now, after putting all of his targets under his control, he begins to turn the unfortunate girls into his sex slaves...

(Source: AniDB)