Yuusha Party ni Kawaii Ko ga Ita node, Kokuhaku shitemita.

Youki dies in his normal life and is reborn in a fantasy world. Instead of being a hero, he became a demon. He has no interest in becoming the demon lord, so he spends his days as a low-ranking guard. One day, a group of heroes attacked them, but Youki defeated all of them easily. While healing the group before sending them away, he met with a priest girl and fell in love at first sight.