The top federal agent "Nightingale" died in the mission, and when she opened her eyes, she turned into the "waste" daughter Shen Qingyuan, whom everyone in the town's government laughed at. The original owner's biological mother died young, and he was treated harshly by his stepmother, and finally died in the woodshed with hatred.
When the soul of an agent settles into a weak body, the timid girl only has a sharp edge in her eyes. Faced with being bullied by a servant girl, she easily fought back with her fighting skills; when faced with public humiliation by her concubine, she amazed the audience with her self-defense skills and broke the shackles of being a "waste".
Armed with modern criminal investigation knowledge, she was able to uncover the truth behind the murder of her birth mother; with her business acumen, she opened a rouge shop to monopolize the capital market; and with advanced military industrial concepts, she presented blueprints for improved trebuchets to aid border wars.
From an abandoned son at the mercy of others to a strange woman who stirs up the chaos in the court, Shen Qingyuan uses the sharp edge of a secret agent to break through the dilemma of the legitimate daughter in ancient times. She works step by step in the whirlpool of power and intrigue, not only protecting the people around her, but also finding her own world in the chess game.
