Chizuru-chan Kaihatsu Nikki
Japanese title: 千鶴ちゃん開発日記
Type: OVA
Episodes: 6
Source: Manga
Genres: Hentai
Studios: T-Rex
Producers: Lune-Pictures
Duration: 16 min per ep
Rating: Rx - Hentai

An honor student who finds herself blackmailed by a scrotum professor who takes her virginity and does various perverse things.