Megami Tantei Vinus File
English name: Detective Goddess
Genres: Hentai
Type: OVA, Episodes: 1
Aired: May 18, 2003
Studio: Shinjukuza
Source: Manga
Rating: Rx - Hentai
Synopsis:
When this beautiful detective duo takes on a new case involving drugs and rape, it brings back painful memories for Rio, whose sister was killed by a gang of sex-starved drug dealers. Could the same gang be responsible for this new threat? Hot-headed as she is, Rio must learn to control her anger in order to uncover the truth.

(Source: AniDB)