Set in the 21st century, with South Korea governed by a constitutional monarchy. Seong Hee-Ju is the second daughter of the top chaebol family in the country. She has almost everything, including a beautiful appearance and intelligence. She is also fiercely competitive. Seong Hee-Ju doesn't care that she is not part of the royal family, but her commoner status starts to become an obstacle in her life. This leads her to get involved with Prince Yian, who is the second son of the King. Prince Yian is destined to have nothing, but his royal status. He always hides him from people, but, after he meets Seong Hee-Ju, he begins to change.