Zatch Bell!

A female Mamodo appears in the city and instantly becomes friends with a girl named Lori, sort of like how Kiyo and Zatch met, except without the smashing windows. The Mamodos name's Kolulu and is very sweet and thinks of Lori as a big sister. Soon after Kolulu meets Zatch and instantly remembers him. Which is going to do; fighting her in her otherself or sending her back to the Mamodo World like the others from the past when she proves to be one of the few good Mamodos who refuses to fight?