Hyeongwu is a long-time idol trainee who just had his dreams and debut dashed to pieces, thanks to a betrayal from a former group member. With nobody to fill the empty spot in their group, Hyeongwu is on the verge of losing his opportunity to become an idol—until he stumbles across a strange, handsome man called Yun, who just might be their group's ticket to stardom. Yun has the charisma and looks of a man fit to rule a kingdom…which, speaking of. You'll never guess where this Prince Charming is actually from.