Ayano married a man with a child and the three of them started living together. She got on well enough with Keisuke, her husband's son, but couldn't close the distance as a mother. Then one day Keisuke came home from school looking grave, and when a worried Ayano asked, he begged her to teach him how to kiss — apparently something had gone wrong with a woman. She turned him down at first, but decided that solving a child's problems is a parent's job, and said “Let your mother teach you how grown-ups kiss,” guiding him gently.