As one of the seven mermaid princesses, Lucia must travel to the human world to protect the mermaid kingdoms.
as Lucia Nanami (voice)
as Hanon Hōshō (voice)
as Rina Tōin (voice)
as Kaito Dōmoto (voice)
as Hippo (voice)
as Nikora Nanami (voice)
as Madame Taki (voice)
as Tarō Mitsuki (voice)
as Noel (voice)
as Caren (voice)
as Coco (voice)
as Seira (voice)
as Michal Amagi (voice)
as Rihito Amagi (voice)
as Masahiro Hamasaki (voice)
as Nagisa Shirai (voice)
as Maki (voice)
as Gaito (voice)
as Izul (voice)
as Eriru (voice)
as Sara (voice)
