Growing more annoyed with Suwa, Kukuru starts to wish she was a fish. Kuuya informs her and Kai that a dolphin is in the bay. Kukuru and Umi encounter Ojii with the dolphin at the bay. Later, Kukuru decides to bring Füka to see the dolphin with her, and names it Ban-chan. Kukuru checks up on the dolphin again behind Suwa's back, which he doesn't take kindly to. Afterwards, Füka tells Kukuru that Umi is bringing Airi to Tingarla on Friday. At night, Kukuru has a dream of being underwater, and Suwa tells her about the new area in Tingarla, giving her the chance to show off her project planning skills...