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

Fuka finds out 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.

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

Haebaru Chiyu is at Gama Gama Aquarium from Aquarium Tingarla to study how they do things, but she butts heads with Kukuru.

With the Gama Gama Aquarium soon to be closed, Kukuru is desperate to find ways to keep it afloat. She tries to figure out a way to market the illusions that people had been witnessing there.

Aquarium Tingarla is visited by a TV crew who is there to document a penguin hatchling’s growth. Fuuka wants to turn down her opportunity to be on TV again.