Quiet and reserved, the H castle ruins ghost remained at the place of her death to pass on the memory of what happened to her and her people.
During the Azuchi-Momoyama period (1568 to 1600), a castle was under siege by an enemy army. With the men away fighting a battle elsewhere, the women decided to kill themselves rather than surrender. To prevent being slaughtered and put on display to damage the men's morale, they stabbed their throats and threw themselves over a waterfall, which stained the river red for three days and nights. While most of them went on sublimity, a single woman decided to stay behind and recreate their deaths using powers gained from absorbing the mountain's energy so that history wouldn't forget them.
A cursed object made by an embalmed hand was placed in the waterfall which made her go berserk and start killing people.
After being turned back to her normal self by Yayoi, she agreed to work with her willingly, offering them a sash that could be used to summon her remotely.