Kyoko

Kyoko is a human who runs an orphanage. We learn that Ushitora has been donating a large amount of money to the orphanage every month. Even though Ushitora tells her that he is a bad person who cannot be forgiven for all the sins he had committed, she insists that he is kind and that all of the kids love him. <Spoilers> She ends up sacrificing her life and the lives of the kids in order to protect Ushitora.