Seifuku Shojo The Animation
Japanese title: 制服処女 the Animation
Type: OVA
Episodes: 2
Source: Manga
Genres: Hentai
Studios: ORADA COMPANY
Producers: Pink Pineapple, Soft Garage
Duration: 28 min per ep
Rating: Rx - Hentai

The anime itself depicts teen-aged (and well endowed) school girls getting raped—by her teachers (the first episode), by some "businessmen" who mistake the girl for a hooker (the second episode), by a class mate in mad love with the girl (third episode), and finally two sisters being raped by the school janitor.

(Source: AniDB)