"Kuki Sanban", codename "Numbuh 3", is a major character and one of the five main characters in Codename: Kids Next Door. A happy-go-lucky Japanese-American girl who serves as Sector V's Medical Specialists, she is the youngest among her teammates and the optimistic but clueless member of the group. Loves Rainbow Monkeys very much that destroying one can set her off. She first appears in HGSS24.