Momo-chan (ももちゃん?)

Momo-chan (ももちゃん^?)

Voiced by: Naomi Wakabayashi

A pink dolphin from Lucia's realm. Initially appeared being showcased in an indoor aquarium for curiosity. After being rescued by the Mermaid Princesses and reunited with its mother, its role is later reduced to occasional messenger. While the Mermaid Princesses could communicate with it using their inner voices, whenever it is with Kaito, he can easily understand the meaning of its gestures.