A historical dual-strong political strategy story. Chi Yao, the Saintess of Miaojiang, goes for an allied marriage for the peace of her tribe, marrying the Prince of Dasheng, Xiao Chengjing. On the day of the grand wedding, she confronts the cold and proud prince head-on, firmly safeguarding her position as the primary wife and the dignity of her tribe. After following her husband to Yunzhou to take up his fief, the two join hands to thoroughly investigate corruption cases involving official granary deficits and salt merchant monopolies, withstanding inner courtyard constraints and local faction counterattacks to protect the livelihood of the common people. Chi Yao even uses her wisdom to resolve internal crises in Miaojiang. From being at odds with each other to trusting one another, they guard the land and protect the people side by side, gradually developing romantic feelings.