Nothing much is known about Coco, because she only shows up toward the end of the series. All we know is that she is the Yellow
Mermaid Princess from the South Pacific Ocean, captured by Gaito at the beginning. When she was freed she told Lucia and them
about Sara's role in destroying the mermaid kingdoms and tried to talk Sara into helping the mermaids, and that was pretty
much it. In the manga though she seems to be childhood friends with Sara.
Nothing much is known about Coco, because she only shows up toward the end of the series. All we know is that she is the Yellow
Mermaid Princess from the South Pacific Ocean, captured by Gaito at the beginning. When she was freed she told Lucia and them
about Sara's role in destroying the mermaid kingdoms and tried to talk Sara into helping the mermaids, and that was pretty
much it. In the manga though she seems to be childhood friends with Sara.