is the head of the New York Branch of the Magdalene Order. She is a strong willed woman who often seems out of place fighting demons and devils. She leads the order with an iron resolve, making sure the New York Branch Office runs as smooth as clockwork. She also distrusts Chrono despite his gentle nature due to his status as a demon. She is openly irritated with Rosette due to her aloof ways but deep down, she truly cares for her.
Sister Kate is later demoted when Chrono loses his sanity and openly attacks Viede and Aion in San Francisco causing countless casualties and revealing to the public the presence of demons.
Yoshiko Sakakibara (Japanese), Laura Chapman (English)