Clumsy Nun: "Of course you know, this means war!"
Spicy Nun: "Be lucky I was not able to bring my cookie mafia with me or I would gift you some cement shoes, Little Nuns of the City."

Okay, Diva wants us to call this black-haired City Nun "Geometry Nun" it seems, he is making this more clear with every image. I vote that she receives the name "Geometry Nun" name officially.