In the battle of Haoshuichuan, the Song army was defeated. The general's son Shen Zhao was wronged along with his father: with a piece of false letter, he actually collaborated with the enemy and assassinated Salmon Island. There was a quota for killing people on the island, and people's lives were weighed and sold. He was supposed to die in the sea - until there were three knocks on the other side of the prison wall late at night.
After seven years in prison, an old Xixia accountant who kept his name anonymous handed him a book "History of Gifts from Xixia" and a picture of hidden gold: his father's life was bought.
Under the pseudonym Xu Mingzhi, he returned to Bianjing. He did not kill with his own hands, but only took advantage of the trend of Xining's reform and used accounts as swords - making the enemy merchants who devoured property lose their money, making the hypocritical censor go to jail, and making his treacherous old friends self-destruct. Every step was calculated clearly, like an account he wrote down one by one.
Shen Zhao has to settle all the debts in this world.
