Mami Yano  

Undine, ヤノ・マミ

A woman who is a shell diver and dislikes outsiders on the island. When she saw Wako and Takuto together, she became very upset and claimed that if Wako continued to be with Takuto, she would lose her abilities as a Star Driver. This woman has first phase power known as Mermaidoll, which is a cyborg-like creature that emerges from her body. She serves under Ivorgne.