A marriage granted by the emperor sent Chen Qingyao, the youngest daughter of the Chen family of the imperial merchant, to the Zhennan Palace.
On her wedding night, she was strangled to death by the good-for-nothing prince Chu Xin. Her modern soul traveled through time and came back from the dead, only to witness a man in black sneaking into the new house and assassinating Chu Xin.
After the murder, the King of Zhennan was not eager to find out the truth. Instead, he used the Chen family as a bargaining chip to force Chen Qingyao and the Chen family to join him to provide money, food and trade routes for future rebellion.
Chen Qingyao surrendered on the surface, plotted secretly, and finally managed to escape under the heavy surveillance of Zhennan Palace.
On the way to escape, she met the man in black again that night and recognized him as the murderer of Chu Xin. The two hold each other's fatal secrets, and are also hunted by Zhennan Palace, so they can only form a temporary alliance.
From escaping from the palace, to running thousands of miles, to returning to the court with a certificate, Chen Qingyao step by step changed from a marriage pawn at the mercy of others to a person who can leverage the situation of the court.