Former human women who became entranced by cursed swords. Generations ago, these cursed swords were created by a wicked mamono lord who imbued them with malice. In those days they were fearsome weapons that would cause a human who picked one up to go mad and change into a mass murderer who would even slay his own comrades.

Their nature has changed along with the transformation of the monsters. Just like the “mamono realm silver” weapons used by monsters, they inflict wounds on an opponent's “es