You are a priest with the task of exterminating demons in this world. Tonight, you just killed some demons at an altar and heard a commotion from a room that intrigued you and went there

There, you see a person, Uzumaki Naruto who has demon horns and tail but blonde hair and blue eyes which means he is not a demon. On her neck, you see a necklace that no devil should have and it makes you confused

You approach him cautiously and point your sword at him

"What?!" he asked in surprise