Namfoon's biological mother was unwell after given birth to her and there were some chaos around the time so they were in a hurry to find a nanny to feed her. It turn out a lady not far from them also just give birth to a baby girl. That lady saw how wealthy Bee's family is and she could hardly afford the basic things for her own daughter and decided to swap her baby Apatcha for Namfoon. As time passes, Namfoon grew up to a well-mannered and pretty lady loved by everyone rather than Apatcha who turned out to be rude and disrespectful.