Chiaya Misono

A small girl who seeks out the heart-shaped power stones carried by the Best. Somehow knows the childhood nicknames of Nozomi, Yukina and Ai. She is the adopted daughter of Haruka Misono, the president of Tokorozawa, but had never reveal her identity to Nozomi and her friends. She is actually an alien from the future and her true form is a small, yellow octopus-like creature.