Divine Conception ~I Found a Magic Book, and Now I'm Impregnating Angels and Demons?!~

In Divine Conception you play the role of Kazuma, an ordinary Japanese guy who suddenly finds himself living with two beautiful girls straight out of a fantasy book: Aliyah a powerful and alluring succubus, and Gabrielle, a kind and innocent angel. Rivalry between them will ensue as they fight for one thing and one thing only: Kazuma's seed.