In the Daqi Dynasty, Lu Zhaozhao, the daughter of the Yunyang Marquis Manor, refuses a marriage proposal and gets acquainted with Shen Jiayan, the Minister of the Court of Judicial Review. The two come to know and love each other amidst aristocratic disputes and court power struggles. They join hands to expose conspiracies and clear the Marquis Manor of grievances. During the autumn hunt, Shen Jiayan confesses his feelings, and the Emperor and Empress bestow a marriage. After marriage, Lu Zhaozhao cleverly fights elders and deeply digs into the rebel party's conspiracy. When a prince stages a coup, the two stand shoulder to shoulder to quell the rebellion. Ultimately, Shen Jiayan is enfeoffed as a differently-surnamed prince, Lu Zhaozhao is bestowed as a first-rank title lady, their youthful affection is fulfilled, and they guard each other in deep love.