Numbuh Three (real name Kuki Sanban) is one of the main five children from Codename: Kids Next Door and is the most childish in terms of personality. Her home nation is Japan (making her and Samurai Jack the only Japanese characters in FusionFall). She has two uptight parents and a younger sister in her family. Her biggest weakness is her love for every type of animal and her favorites are the Rainbow Monkeys, stuffed toy monkeys. As an adult, she later married Numbuh Four and became the president of the Rainbow Monkey Corporation.