In a decadent dynasty, she is a princess left behind by the people, carrying a jade seal that symbolizes power; in a prosperous feudal lord, he is the rich and luxurious eldest son, a rare talent seen in a century. Is it true or false, love or power? In the fog, why did the exiled prince come? The expected is a play, the unexpected is a plan. Look, the sadness in the vast world of mortals.