Kuki Sanban (codenamed Numbuh 3) is a pretty happy-go-lucky, 10-year-old 4th-grader Japanese girl who is in charge of Diversionary Tactics and is the Medical Specialist of Sector V. She also takes care of the hamsters that power the treehouse. She is the youngest operative, and one of the two female members (alongside Numbuh 5) and the only Asian-American in her sector from the Cartoon Network show, Codename: Kids Next Door. She has a happy-go-lucky, 10-year-old, fourth-grade Japanese girl who has a younger sister named Mushi Sanban and a future husband named Wallabee Beatles. As an adult, she becomes President of the Rainbow Monkey Corporation, and the first thing she did when she took over was tear down a Rainbow Monkey Potty training amusement park.