Number 3

An 'airhead' and the epitome of 'girly' and optimistic, is a usually happy  Japanese  girl whose love for every creature almost always interferes with her responsibilities. She has a great love for, is a fan of, and has extensive knowledge about Rainbow Monkeys (which her room is filled with), and will often irrationally defend them, occasionally allowing her insanely aggressive side to show (generally accompanied by her face turning red, teeth and ears becoming pointed and eyes flaming, resembling an oni ). It should also be noted that she returns Numbuh 4's feelings.