Mirror City is known as the prosperous age, but in fact it has turbulent undercurrents. Duan Jiuyuan, a prince from a poor family in the border area, was accidentally involved in the whirlpool of imperial power and met Xu Mingluan, the concubine of the prime minister's house, Wei Yuancai, the second prince, Zheng Sangu, the mother-in-law of the market, and others. Everyone is fighting openly and secretly, scheming against each other, there are a lot of jokes, and there are many machinations and tricks - there are "immortal heads-offs" that kill the ministers instantly with eloquence, and there are also weird serial schemes caused by own mistakes, and there are many crises behind the prosperity. Everyone has their own secret, and by accident, "pranks" that turn against the wind and make absurd misplacements are constantly being staged. Amidst laughter and tears, the truth of the power game gradually emerges. The ownership of power and position in the country is confusing, and everyone is growing and transforming amidst the ups and downs. In the end, who can have the last laugh in troubled times?