Kiriya Hakushaku Ke no Roku Shimai
Japanese title: 霧谷伯爵家の六姉妹
Type: OVA
Episodes: 2
Source: Visual novel
Genres: Hentai
Studios: G-Lam
Producers: Pink Pineapple
Duration: 24 min per ep
Rating: Rx - Hentai

One day, Daisuke, a reporter, visits an old Western house on the hill. There are Sumi, the owner of the house, and her five daughters. "You are a selected man. Yes, you can make a baby with my daughters and get everything here...." Though Daisuke still can't believe it, he starts staying at her house. Erotic and deep relationship with the sisters.... What is the secret of this house? What will happen to Daisuke?

(Source: Eroge Shop)