Nanako, a mother, is worried about her second son, who has been absent-minded lately. When I went to the room thinking, ``I wonder if this was something I was worried about,'' my second son was making excessive demands. Her mother had no choice but to comply with her second son's request, but it turned out to be a mistake. After that day, the behavior further escalated. Then, the eldest son, who was watching the two of them, also called for his mother.