Su Mingxi, the legitimate daughter of a century-old law school family, mistakenly believed in her husband in her previous life. She hid her talent in solving crimes and was trapped in the East Palace to help her husband ascend to the throne. However, she ended up being executed by the whole family and she was executed by Ling Chi. On the execution ground, she swore with her blood that if there was an afterlife, she would bring her enemies under the law, protect her family, keep right from wrong, and ensure that good and evil find their way.
She was reborn overnight, back to the age of fourteen, before any tragedy happened. In this life, she no longer hides her sharpness, and relies on her unique knowledge of law to solve strange cases and clear up wrongs, becoming what the people call "Nv Qingtian". Internally, he cleans up family traitors and externally destroys powerful officials and old enemies. He even joins forces with Lu Zheng, who is in charge of the Suwei Department, to uncover the conspiracy in the court and revise the centuries-old code of law.
She broke the shackles of feudalism as a woman, making the law no longer a butcher's knife for the powerful to frame loyalty, but a bottom line to protect all people, and eventually became a legend of law that has been passed down through the ages.