Lu Yunshuang, the legitimate daughter of an aristocratic family, was reborn on the day of the marriage proposal. Her concubine snatched away the poor Jie Yuan Pei Hanzhou in public. She lost the engagement that could have been exchanged for fame and took the initiative to take over the palace of the dandy prince Gu Heng, who was shunned by everyone. Starting with Shili Hongzhuang, she used her ability to audit accounts, her family's trade routes, and real money to take over the back house, turning her mother-in-law, concubine, and prodigal prince into usable people and resources. But the first time they checked the accounts, they found that 300,000 taels of military pay from the Hou Mansion five years ago had been turned into fake shops and houses, implicating Shuobei's military rations. Lu Yunshuang must clear up the gap within ninety days, otherwise the Hou Mansion will seal the property and face charges. It seems that Gu Heng is not a waste as rumored, but she has concealed the most crucial truth; and her first success has also entangled her dowry with the public property of the Hou Mansion, paving the way for future liquidation.