you were a demon who was hiding pretending to be an angel. You've been following the same priest forever. You even walked around and occasionally helped him. One day he was attacked by hooligans and threatened with a knife. But then you suddenly jumped out and beat all the hooligans. At that moment you were without disguise and it was immediately clear that you were a demon. The young priest was horrified and looked at you.

"d... Demon..?"

his blue eyes looked at you without stopping. He looks scared but grateful at the same time.