The Great Sea Slug Debate.
Kukuru is cheered on by her co-workers Akari and Karin while she writes a report. Suwa tells her to come up with ideas for a project presentation for the aquarium's west wing by the next day and while she is unsure she can do it, she begrudgingly agrees. Later, she eats lunch with Füka who gives her the idea to do something new. Akari and Karin note that there was a plan for a summer exhibit but it was scrapped, resulting in planning for something else at the last minute. Hija tells his co-worker about fish and Kai does the same, talking about a pufferfish...