After transmigrating, Jiang Ruyi begins by disguising herself as a man and taking her biological older brother's place at work, only to run headfirst into a deadly case involving three million taels of embezzled silver! Framed by a treacherous chancellor and threatened by armed constables, she sneers, grabs her abacus, and exposes eighteen years of falsified accounts on the spot. Want me to take the blame and serve as your scapegoat? I'll follow the clues and raid your secret warehouse! When the treacherous chancellor cuts off the supply of timber, she fires stone in a kiln to make up for it. When famine runs rampant, she clears out the black market and issues new currency. The ruthless Regent originally intended to use her as a pawn, but she turns the tables at every step, ultimately seizing the official seal of the Ministry of Revenue and taking control of both the imperial court and the national treasury. When her disguise as a beautiful woman is finally torn away in front of everyone, the Regent publicly refuses to accept the golden seal of regency. 'First, issue an imperial decree granting me marriage to her! When it comes to controlling the kingdom's purse strings, I recognize only her!'