Maika, Dino, and Mafuyu are at the riverbank for a barbecue, while Kaho, Miu, and Kouyou, who rather would have stayed indoors, were forced to come along. Maika brings along a big tuna for the barbecue, Dino slices and grills it so that everyone can enjoy eating it. As the sun sets and the café staff return home, Dino notices that Maika wanted to go to the beach one day...