In an alternate reality where the royal family of Korea is still thriving, the young crown prince Lee Shin's wedding is fast approaching. What has caught the public's attention, however, is not the fact that he's marrying, but who he's marrying. Shin Chae Gyeong, a careless artistic girl and a fellow classmate of the prince's, is not exactly thrilled at the prospect of obeying an agreement her grandfather made with the late king, but accepts at her family's persuasion. After the wedding, Chae Gyeong struggles to adapt to palace life, constantly being in the public eye, and her new husband's somewhat icy personality. Though Shin finds himself belatedly falling for his foolish wife, he is unaware the feelings are reciprocated. While their fledgling marriage is made more difficult with the interference of Shin's exgirlfriend and the former crown prince's return to Korea, the young pair must also come to terms with the daunting prospect of being the next King and Queen.