Name: Sue Age: 15 Race: human/mermaid Pearl: Red Pearl Hair: Red Brown Eyes: Orange Favorite Colour: yellow Hobby: Shopping, collecting seashells, cooking Likes: Her sister, Hideaki, Christmas sale season Dislikes: Gaito
Sue is the younger sister of Sara and the Red Pearl princess. In a storm she disappeared with everyone leaving with the thought she was dead. But actually she got lost and swim into a lake were she met the artist Hideaki.
They fell in love and she stayed with him as a human. But when she hears Sara joined with Gaito, she helps the others to defeat Gaito and save the other mermaids and Kaito.
Later she returns to wait for Seira so she can rule the Indain ocean like Sara did before.