Stella TestaRossa

Influencer Ikaruga Natsu returns to Japan from the Vatican to meet up with Mamiya Yuika, a classmate he fell in love with in elementary school. There, he meets the Vatican priests Liberio, Jiu, and Gaul, who fight against demons, and Yuika, who also fights against them... But after his face, his only good quality, is ruined by a demon, Natsu becomes embroiled in a battle with Satanists in order to regain his handsomeness and win Yuika's favor!

(Source: Kadokawa, translated)