The female lead's parents were falsely accused of bribery and using substandard materials in a bridge collapse incident, leading to their imprisonment and eventual persecution to death in jail. Determined to seek justice, the female lead becomes a lawyer, vowing to fight against all injustices while tirelessly working to overturn her parents' wrongful conviction. She tracks down individuals connected to the original case, helping them resolve their current legal disputes, and gains new clues after each case. However, a powerful figure behind the scenes continually steers her investigation in the wrong direction. Additionally, the female lead faces constant sabotage and rivalry from antagonistic colleagues during her cases, but she outmaneuvers them with her wit, successfully solves each case, and rises steadily in her career.
