Meeting the unusual

This story started in the forest near the town of Melfion. It was December 18th, year 574, Blood moon was shining upon the white snow, but you couldn't actually tell if it was just a moon or spilled blood that made the snow look red, hundreds of hunters were chasing witches through the forest and slaughtering them. One of the witches upon her dying breath, after watching her four-year-old son being brutally murdered while one of the arrows pierced through her chest, called out to the demon-lord and asked him to annihilate every hunter in the forest in exchange for her soul. Belphegor didn't exactly have to make her wish come true, her soul belonged to him anyways, but he wanted to have some fun. He opened the gates of hell and sent a demon army into the forest. The tables turned in seconds, hunters became hunted, their desperate screams went sky high while demons tore them limb from limb. Belphegor chased one of them deeper into the forest and when he caught up with him he heard a girl screaming just up ahead. He ripped through the hunter and kept running. He ended up on a little filed in the middle of forest, three hunters had cornered a girl and were aiming crossbows at her. She looked like an ordinary girl but something was different about her, Belphegor felt demonic presence in her but it wasn't like any demon he met. He rushed to hunters and in a split second their body parts where scattered all over the field, bloodstains turned already red snow scarlet. When he turned towards the girl, she had already stretched her wings and was in the air, she flew over the trees and disappeared in darkness. Belphegor was stunned, he had never seen something so unusual, yet so breathtakingly beautiful : her red hair was glaring under the light of blood moon, her blue eyes were so deep that they could easily consume even a demon-lord, her face was so innocent and pure that no one could think that demon blood was running through her veins. Only thing that gave out that kind of nature of hers were her wings, but surprisingly they weren't exactly demonic wings, at least not both of them, left one was pitch black like all the other demons wings, but right one was so pure white that it was glowing white even under blood moon. As he was looking at the sky, one of the demons came to Belphegor and told him that every single hunter was dead. Belphegor reopened the gates of hell and walked through it, demons following his footsteps.