Yoona was a poor girl her mother died from illness so her and her dad were poor until one day her dad married Taeyeon . Taeyeon was mean she had 2 daughters Jessica and Tiffany. They were always mean to Yoona and made her there maid without her father knowning . Until one day Yoonas family gets a letter to go to Taecyeon the princes ball to choose his future queen. What will happen will they fall in love?