The good relationship between "Sister Ayu" Ayumi Hamasaki and her mother has reached a point where they can share the same man. Sister Ayu revealed to the staff that her mother is considering remarrying, and the object of her affection is actually Mr. N, Sister Ayu's former middle school classmate and ex-boyfriend. Mr. N works at the daily necessities shop run by Ayu's mother, and their age-defying romance has blossomed. With stable feelings between them, marriage is a possibility, and Sister Ayu fully supports it. The love story between Sister Ayu and her mother is more dramatic than an 8 PM soap opera, leaving the staff utterly astonished.