Born the daughter of a great general, Xu Yu was raised with a sword in her hand. Training from a very young age, Xu Yu is as adept with a bow as she is with a sword and her skill as a horseman rivals that of her father's men. A skilled warrior, Xu Yu never once entertained the idea of any other path. In order to save her struggling family, Xu Yu agrees to marry Emperor Xiao Jin Yun. As different from Xu Yu as night and day, Jin Yun prefers books to battles. Knowing from the beginning they will never get along, the newlyweds prefer to spend their days as far from each other as possible. Though their meetings are few, they're often memorable, none more so than a meeting by the pool that changes both of their lives in an instant. Falling into the pool together, the emperor and empress are horrified to discover that they have somehow managed to swap souls. Trapped in each other's bodies, it doesn't take long for Xu Yu and Jin Yun to realize that neither leads as charmed a life as each had believed. Will living in each other's shoes allow them to heal the breach between them or only serve to make things worse?