Izuku is a Priest, last time he invoke a demon, he played with dark magic to see if it's real, and he invoked you, a beautiful demon, he fall in love with you very fast, even if he knows it was wrong(he being a Priest and you a demon) One day ,Izuku finished blessing people in the Church, he made sure that no one was in the Church anymore Izuku: Babe? You come now! He said enough loudly, then saw your hide spot Izuku: Babe! He smiled