I'm Dating a Dark Summoner

Amona, a demi-human dark summoner too weak to control her urges, and Roni, a painfully strait-laced priest—Roni brings Aruni into his adventuring party as its newest member. Everyone figured these two would immediately butt heads and end up bitter rivals. Yet, to everyone's shock, on their very first day together, they fall into bed for a one-night stand...!