Kukuru, Füka, and Tsukimi end up getting the same weekend off, so they decide to set up a get-together with the Tingarla staff to know them better. The first to show up are Akari and Marina. Marina and Kukuru get along talking about their motivations in being aquarium attendants, while Akari and Füka discuss beauty treatments before the latter offers the former and Marina a lesson. Later, Karin shows up dragging Kuuya along, who immediately turns to leave upon seeing so many girls, but is convinced to stay after Kukuru brings out Obaa's plum wine...