I reluctantly returned to my hometown after receiving news of my father's remarriage. Although I returned home, I felt awkward with my father's new wife and stepchildren, so I left the house and went for a walk around town. Then, I happened to pass by someone. That person is An-san, my senior from school days and my first love. It seems she also noticed me, and she was happily reminiscing about old times as if it were a reunion after several years. And because An-san's husband, Kazuya-san, also wants to meet me, I ended up staying at the Komatsu house for three days in a hurry...