Shen Zhiyi, a female master's degree in modern finance, is dressed as the concubine of the richest family in ancient times. Because her family clings to the powerful, she is forced to marry Lu Chengyuan, the Duke of Zhenguo, a cold-faced powerful official who is said to be a "wife-killer" for her eldest sister. Lu Chengyuan appeared to be a cold and domineering powerful minister, but in fact he was a "pauper" tough guy who was driven to the "brink of bankruptcy" by the imperial army's arrears of pay.
There is no system, but there is modern business thinking. After marrying into the Duke's palace, she discovered that the so-called "power over the ruling and opposition parties" was actually a "financial black hole."
The male protagonist lacks money to fight wars and maintain retainers; the female protagonist lacks status and freedom. The two signed a "Gamble Agreement" on their wedding night: the heroine would spend one year filling the book deficit for the hero, and the hero would give the heroine "freedom" and partial control of the bank. After a year's appointment, it was the dog who fell in love first.
