Su Mimi, the sole daughter of the Han Cheng General's Manor, is ordered into the imperial palace to marry Emperor Feng Zheng—a cold, calculating, and ruthlessly cunning ruler. At first, they distrust each other: she schemes to 'remove the husband but keep the son' and seize power as Empress Dowager; he fears Han Cheng's military might and repeatedly tests her loyalty. After a series of fierce clashes, an accidental kiss swaps their bodies—plunging them into chaotic palace hijinks as they struggle to survive in each other's skin.
