Omega to Akuma no Sefure Jijou

Yuuma, the unpopular host, summoned the incubus demon, Airucus, to grant his wishes. The contract's condition, however, was for Yuuma to give birth to Ai's child.

Yuuma is forced into conceiving a child and accepts Ai's body fluids by receiving his semen. But despite the fact that he was unable to become pregnant, Yuuma's body was in ...