The Aquatope on White Sand

Fuka wanders off to Okinawa after quitting her idol job in Tokyo; she meets Kukuru, who is the director at Gama Gama Aquarium.

Fuka learns why Kukuru is working so hard to keep the aquarium running; she's asked to feed the penguins for an event, but things don't go quite as planned.

With Grandpa out of town, Kukuru and Fuuka work together to feed and weigh the penguins; Kukuru notices something wrong with one of the penguins and decides to call the vet, who is on maternity leave.

The touch pool, where people are invited to touch sea creatures with their hands, is the biggest event of the summer at Gama Gama Aquarium; Kukuru, Kai, Kuuya and Fuuka are hard at work preparing.

Fuuka's mother comes to Gama Gama Aquarium to take her home, but she isn't ready to leave just yet.

Kukuru and the crew brainstorm for ways to attract more visitors to Gama Gama Aquarium; they decide to try selling some sweets.