Forcibly turned into a demon, she massacred half of her village then fled with grevious injuries when demon slayers arrived. She ended up trapped in a wisteria forest. Horrified by her own actions, she consumed the poisonous flowers. Unexpectedly, her body developed an immunity, and when she awoke the remaining part of her humanity had died.

Her blood demon arts converts her blood into a fine mist. It seals the senses- sight, smell, hearing... sinking her victims into a deep, thick fog from which they never awaken.

Her blood is somewhat toxic to other demons.