Wen Zhiyi, a top modern-day corporate bankruptcy and restructuring expert, unexpectedly travels through time and becomes an auspicious bride maid purchased for one tael of silver by the Prince of Zhen'guo's household. The old prince has died in battle, the heir, Pei Wuyan, has suffered severe injuries to both legs, and the manor is burdened with 300,000 taels of high-interest debt. Meanwhile, the second uncle, Pei Guang, has colluded with outsiders to plunder the family's wealth and commit murder. Wen Zhiyi tears up her servant contract, invokes the laws of the Great Sheng Dynasty to secure a thirty-day grace period, and makes a wager with Pei Wuyan. Using double-entry bookkeeping, she recovers embezzled funds. Through hotpot preorders, brand franchising, ice-making with saltpeter, cold-chain delivery, food delivery, and beauty products, she steadily expands the family's business empire, repeatedly overcoming debt collector Huang Laowu's intimidation and the suppression tactics of imperial merchant Xue.