During the political turmoil of the Dayong Dynasty in the fictional dynasty, An Qingying, a cowardly concubine in the Duke's palace, is actually an orphan of the former royal family who possesses unparalleled intelligence and secret power. The powerful and ruthless regent Xiao Zhi, however, only shows his gentleness to her.
When the two first met, they tested each other and used each other. In the secret battles and turmoil in the court, they gradually became connected and shared life and death. From the time Xiao Zhi ascended the throne and presented the phoenix seal to her in public, allowing her to rule the country together, to An Qingying listening to politics behind the curtain and refusing the draft, and keeping the harem empty, their relationship became stronger in the wind and rain.
During the Lantern Festival, the emperor and the empress traveled incognito, and the white-haired old woman presented them with lanterns that read "Forever Together", wishing they would stay together forever. The lights on the long street were bright, and the sky was filled with fireworks from the city towers. Xiao Zhi kissed An Qingying lightly and made a promise that "I will live in Chang'an for the rest of my life and live up to my deep love." This love that spans identities and camps finally composes a successful chapter in the peace and prosperity of the country and the people.