Hakuyou no Musume

Overview

Its near the end of the Heian era and Tamamo is a young noblewoman with curly hair something that is seen as ugly and strange. Fallen on hard times after the death of her father and sister because the actions of a cruel nobleman she dreams of revenge. She meets a young man Naoto who is kind and protective towards her. He has amibitions to become an Onmyouji. Due to various circumstances they release an evil fox spirit named Otsuka-sama who promises Nao that she can help her punish the nobles who mistreated her and destroyed her family. All that she requires is her soul. Can Nao save Tamamo before she is lost to the darkness? The story of “Tamamo-no-mae” and “Nine-tailed fox” begins here!

Source: AniList