While at the beach Arale Norimaki rescues a shark. In return, the shark invites her and the rest of the Norimaki to their underwater city. Meanwhile, Suppaman intends to follow them and get revenge. While in the city, Arale meets Urashima Tarō, who joins Arale while playing at the amusement park.
Kenji Utsumi
Senbei Norimaki (voice)
Mami Koyama
Arale Norimaki (voice)
Naokazu Adachi
Taro Urashima (voice)
Wakako Shimazaki
Mermaid Queen / Obotchaman (voice)
Takeshi Aono
Urashima Taro(voice)
Hiroko Emori
Turbo Norimaki(voice)
Toru Furuya
Suppaman(voice)
Hirohiko Kakegawa
Eel(voice)
