Her husband showed no interest in his son's growth due to his busy work, and he was also sexless, so Kana couldn't help but feel lonely. One day, Kiriyama, who leaves his child at the same nursery school, comes to his aid when his mamachari breaks down. The two of them get excited about small talk and meet again in the evening on their way home from shopping and exchange contact information. On the way home that day, Kiriyama will deliver her child's handkerchief that Kana dropped to her house.
