Ringetsu The Animation
English title: Ringetsu The Animation
Japanese title: 燐月 ～リンゲツ～ THE ANIMATION
Type: OVA
Episodes: 3
Source: Visual novel
Genres: Hentai
Studios: Flavors Soft
Producers: Milky Animation Label, MS Pictures
Duration: 27 min per ep
Rating: Rx - Hentai

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)