While Adachi's been worrying herself sick over a potential rival for Shimamura's affection, half of summer vacation has passed her by. She's determined to make the most of the time that's left--but unluckily for her, Shimamura's off on a trip to the countryside to visit her grandparents! Can Adachi survive four days without the girl she loves?! Meanwhile, as Shimamura reconnects with familiar faces--including a beloved furry friend--she starts to notice her feelings have been changing...