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.
#1Dr. Slump and Arale-chan: Hello! Wonder Island
#2Dr. Slump: Hoyoyo! Space Adventure
#3Dr. Slump and Arale-chan: Hoyoyo! The Great Race Around The World
#4Dr. Slump and Arale-chan: Hoyoyo! The Treasure of Nanaba Castle
#5Dr. Slump and Arale-chan: Hoyoyo! City of Dreams, Mechapolis
#6Dr. Slump and Arale-chan: N-cha! Clear Skies Over Penguin Village
#7Dr. Slump and Arale-chan: N-cha! From Penguin Village with Love
You’re hereDr. Slump and Arale-chan: Hoyoyo!! Follow the Rescued Shark...
#9Dr. Slump and Arale-chan: N-cha!! Excited Heart of Summer Vacation
#10Dr. Slump: Arale's Surprise Bang
#11Dr. Slump: Dr. Mashirito and Abale-chan