The series starts off with the news that the King, Shin's father, is very ill. With the grim outlook on the King's health, the royal family scrambles to find a wife for Shin (JOO Ji Hoon), so as to allow him to take over the royal throne if the situation requires. Despite being in love with another girl, the ambitious and talented ballerina Hyo-rin whom Shin initially proposed to (she rejects him to pursue her ballet dreams), Shin eventually marries a commoner to whom he was betrothed by his late grandfather in an old agreement with the girl's grandfather. Shin marries the headstrong yet lovable Chae-kyeong (YOON Eun Hye) after Hyo-rin's rejection. Despite initially feeling nothing for Chae-kyeong, love eventually blossoms between the couple