Sister Catharine

Sister Claire’s best friend and mentor; Sister Catharine was the one who found Claire as a baby. Sister Catharine is very cool-headed and kind, but she isn’t above teasing Claire sometimes. She is deathly allergic to cats, which is why Claire is forbidden to play with them. Despite this, Claire has almost killed her by accident several times. Even so, she and Claire share a very strong bond, Claire thinks of Catharine as her mother. Catharine sees herself as Claire’s protector, and has always been there to protect her from the wrath of the older nuns (particularly the malevolent Sister Marguerite.)



Catharine is spotted by Claire doing a strange chant in the Catacombs, where she is attacked by "Evil Cat," aka Grimm. A colorful blast of energia fuses Grimm's soul to Catharine's body, turning her into Sister Cat. The effect wears off during the day, but by night Grimm is in possession of her body.