Ep. 21: Kukuru visits a demolished aquarium and meets a turtle researcher on a remote island.
Aired on November 26, 2021

Kukuru struggles with her job and visits the now-demolished Gama Gama Aquarium, leaving her shocked. She takes unauthorized leave and travels to a remote island where she encounters Misaki Guden, a sea turtle researcher and conservationist who is also Gousuke's wife. Kukuru assists Misaki with her duties and chooses to observe the hatching sea turtles. Meanwhile, Fuuka is unable to focus on her work due to concerns for Kukuru. At the same time, unusual events occur regarding the Cape penguins under Fuuka's care. This episode highlights the contrasting experiences of the characters as they deal with personal and professional challenges in different settings.
Episodes
- Ep. 17 · Kukuru, Fuuka, and Tsukimi Host a Gathering at Tingarla Aquarium
- Ep. 18 · Aquarium staff prepare for a sea creature cosplay event despite Akari's exclusion
- Ep. 19 · Fuuka and Luka Shiroi Visit Tingarla Aquarium for a Penguin Documentary
- Ep. 20 · Kukuru faces overwhelming work for the new area opening while learning about the aquarium's demolition.
- Ep. 21 · Kukuru visits a demolished aquarium and meets a turtle researcher on a remote island.
- Ep. 22 · Kukuru Returns to Tingarla Aquarium with Renewed Spirit After Sea Turtle Hatching
- Ep. 23 · Tingarla Aquarium Director Announces Marine Study Project Amidst Environmental Concerns
- Ep. 24 · Tingarla Aquarium staff prepare for Kukuru's wedding and new area opening