Inhwa 14, with the failing health of the current King, the Royal Family push to marry off the Crown Prince in order to secure the Royal Family lineage. They force Crown Prince Shin to marry someone that was betrothed to him even before he was born. But he has a secret girlfriend, dance major Min Hyo Rin, and proposes to her. She takes this as a joke, claiming that her dream is to first, succeed as a ballerina. Meanwhile, the Shin family is on the verge of bankruptcy from bad financial decisions and the most average high school girl in Korea, Shin Chae Gyeong, receives word that she has been betrothed to the Crown Prince. They all thought that their grandfather's will was a joke! They never imagined it would come back at them like this!