Suddenly, his son, Kosuke, was told by his mother, Yuri, that he would be remarried. I was grateful to Yuri for raising me with just one woman, but I should have only had feelings as a parent and child. However, when I go to see and talk to my remarriage partner, Maruyama, my feelings change completely. The feeling of loss that one's own mother is robbed by another person, the feeling of anxiety about pulling away the old house where he was born and raised and starting a new life ... Various thoughts are mixed in a complicated way. And it is dominated by the feeling that I do not want to give the lily to anyone as a woman.