Ushio is a freediver with strange powers. He and his friends are at a tropical land in search of a rare fish, the Blue Butterfly. This pursuit leads them to Ayuuru, a local girl who might know where to find the legendary fish.

Credits

Mamoru HamatsuDirector

Emi ShinoharaSara Kannazuki (voice)

Nobutoshi CannaUshio Hayama (voice)

Yuri AmanoAyuuru (voice)

ChafurinGen Kumagai (voice)