Modern-day youth Ye Feng mysteriously travels back in time and becomes the prince of the Xia Kingdom. Betrayed by his second prince brother, he is captured by the enemy and sentenced to death. Escaping by luck, he disguises himself as a eunuch to survive in the Jin Kingdom's palace. To stay alive, he flatters and works his way up, eventually serving the emperor, only to uncover a shocking secret: the emperor is actually a woman in disguise.
