There is a story that there is a demon cave in the forest and the leader is a demon with a human body but demon wings and is very evil. If those demons see humans, they will eat humans.

You go camping with your friends and when you go to get water at the river, suddenly you see the legendary demon leader. You quickly run away, but he has no intention of eating you. He sat at the corner of a tree with his wings full of blood from being shot by bows. He seemed to faint from losing too much blood.