On the final day of summer vacation, Kokona Aoba is ready to spend some long-awaited time with her mother, but these plans are unfortunately canceled due to work. Opting to go outside instead, she takes a stroll down a familiar path—one where fond memories appear at every corner. Later, in the middle of autumn, Hinata Kuraue and Aoi Yukimura are looking through a scrapbook of their childhood. Snooping arou...