Several years have passed since remarriage, and Madonna has built a beautiful family with her stepdaughter, Manami. Their relationship is going well, and life seems perfect. However, there's one lingering regret in her heart—her son, Satoshi, born from her previous marriage. When Satoshi was still a young child, they were separated, and she has never stopped thinking about him. She has long wished to see him again, now that he has grown up. That wish suddenly comes true one day when Manami announces she wants to introduce her boyfriend by bringing him home...