Ringetsu The Animation
English name: Ringetsu The Animation
Genres: Hentai
Type: OVA, Episodes: 3
Aired: Jul 25, 2006 to Sep 25, 2006
Studio: Flavors Soft
Source: Visual novel
Rating: Rx - Hentai
Synopsis:
Long time ago, the Rindo family was cursed by a monster. Since then, new born babies have been girls. To break the curse, they had to marry persons of the Higetsu family who have strong spiritual power, and have to bear a child by the next red moon. Now, the curse befalls to Rindo Naoto. In order to break the curse, he has to beget a child with one of four sisters of the Higetsus.

(Source: AnimeNfo)