Sister Krone

シスター・クローネ

Sister Krone comes to the orphanage to help Isabella run Grace Field House. [Spoiler] It's later revealed that her number is 18684. [/Spoiler] [Spoiler] She would eventually attempt to usurp the position of "Mama," an act which would lead to her death at the hands of Isabella, Grandma and the Demons. [/Spoiler]