Yunjo is a young prince who has always served his kingdom from behind the scenes. He's spent his whole life in the shadow of his brother, the crown prince Yigang, fighting enemies and winning wars in his name. All that changes when one day, he meets Seolyun, a mysterious and charming woman who captivates him instantly. What happens when a man emerges from the shadows to follow his heart? Can he overcome all of the obstacles in his way to step into the light and be with the one he loves?