Great Jing, the seventeenth year of Yong'an, late autumn.
Su Yan, a modern tax auditor, transmigrates into the much-ridiculed, dim-witted live-in son-in-law of Qingxi Town. His clan is seizing his property, his uncle's family is forcing a marriage, and the county office has sealed his shop. Surrounded on all sides, he has only his wife, Lin Qingyuan, who has always treated him as she did before.
Everyone calls this son-in-law a fool, never realizing that he has already pored over the shop's old accounts beneath the lamplight.
At the clan meeting, he recites clan rules and questions the forged accounts. In just a few words, he leaves his grasping uncle speechless and stakes everything on a three-month deadline. In the dead of night, he searches the storehouse, battles arsonists, and exposes tax fraud. With his true accounting skills, he turns defense into offense and transforms the shop and dowry left by his late mother into Qingxi's top silk emporium.
From a property dispute to corruption in the weaving industry, from rural business rivalries to the imperial court in the capital, he advances carefully and uses his financial skills to break through every impasse. In the process, he uncovers an old case involving his late mother, Madam Shen, and stumbles upon a shocking conspiracy reaching across the Ministry of Revenue and the Weaving Bureau.
