Reiha  

Rewritten response: A snow demon who is a rival to Miyu and seeks to destroy shinma, she is known as Reiha. Unlike Miyu, Reiha lacks sympathy and has been known to kill innocents in her pursuit of destroying shinma. Her father was the leader of a group responsible for ensuring that a guardian, specifically Miyu, would emerge. Tragically, he was killed by Black Kite, the Bird Shinma, before he could call out Reiha's name instead of Miyus. This incident has left Reiha with unforgiving feelings towards Miyu.