Mahou Shoujo Ai San: THE ANIME

Ai, Rin, and Meg are magical soldiers who battle the evil Yuragi infesting the streets at night. The usually solitary Yuragi, attacking girls at random, have been collaborating towards an unknown goal. In the center of it all is Shin and his daughter Mayu, who Rin gave birth to after he raped her.
(Source: HentaiCrunch.com)