The Dajing Dynasty had strict laws. Su Qingci came from a legal family and studied the laws with his father since he was a child. However, his father, Su Shenyan, was framed by corrupt officials and imprisoned for "corruption of official money". The family was overturned. In order to overturn the case for her father, Su Qingci disguised herself as a man and joined a law firm under the pseudonym "Su Jin". Relying on her "legal deduction" talent that can quickly sort out the logic of the case, she has successively solved unjust cases such as the "Scholar Robbery and Murder Case" and the "Embroidered Lady Sinking Case", and gradually showed her talents. Lu Jingyuan, the upright prefect, appreciated his talent and secretly helped investigate the case. The two worked together to fight against the corrupt official group that framed the Su family, and gradually uncovered the truth about their father's injustice. In the end, Su Qingci cleared the family's grievances, and was exceptionally recognized by the court, becoming the first female lawyer in Dajing.
