Her husband is too busy with work to show any interest in their son's growth, and the couple is also sexless, so Kana feels lonely. One day, when her mom's bicycle breaks down, Kiriyama, who has his child at the same nursery school, comes to her aid. The two have a lively conversation, and on the way home from shopping in the evening, they meet again and exchange contact information. On the way home that day, Kiriyama returns to Kana's house a handkerchief that Kana had dropped.