On the day when the Nanliang Kingdom was broken, the last princess Xiao Yuniang was born. Xiao Yuniang's uncle and general Chen Xing established Nanchen on the side of Zhou Qingjun and Ge Liangding, and demoted the female family members of the former Xiao family to Yeting as slaves. Cui Zhongming, the son of Nanliang Shangshuling who was exiled for having a marriage contract with the princess, was pardoned and returned to Beijing, but was ordered by Emperor Chen to serve as a horse slave.
Xiao Yuniang was unwilling to succumb to fate. Cui Zhongming shouldered the important task of revitalizing the family. The two frustrated people supported each other in troubled times.
The society is in turmoil, and undercurrents are surging. Xiao Yuniang leaves Yeting, marries, plans for a kingdom, and becomes the empress. Together with Cui Zhongming, who is backstabbed by his best friend, they fight their way out of the chaos. At this time, Cui Zhongming discovers that the real Yuniang is actually someone else. The shocking chess game that changes the day has been laid out since Yuniang was born.
Purpose: Not only to take revenge but also to cherish the people in front of you