While his wife was visiting her parents' home with their child, her friend Ayane came to visit. She came all the way from Hokkaido to surprise his wife, but... his wife was out of town, and the surprise visit plan fell through. "I thought I'd see her for the first time in years... but I can't believe she's out of town... what a shame." Seeing her sighing in dejectedness and melancholy, Kazuhiro invited Ayane over to his house, thinking it would be a good idea, but...