A handsome influencer was supposed to have a stylish battle, but...? Influencer Natsu Ikaruga returns to Japan from the Vatican to meet Yuika Mamiya, a classmate he had a crush on in elementary school. There, he meets Liberio Jiu Gaul, a priest of the Roman Catholic Church who fights demons, and Yuika, who fights alongside him... However, Natsu's only redeeming quality—his good looks—has been ruined by demons, and in order to regain his good looks and win Yuika's affection, he becomes embroiled in battles against Satanists!?