Fifteen years ago, businessman Lin Weidong helped an orphaned girl, Jiang Xiaotao, and gave her a pen to encourage her. Fifteen years later, Jiang Xiaotao has become the queen of the legal world, while Lin Weidong is betrayed and stripped of his power by his adopted sons, Yang Jun and Yang Feng. Determined to repay her benefactor, Jiang Xiaotao switches sides and takes up his defense, engaging in a fierce courtroom battle against Song Weimin, who is secretly pulling strings behind the scenes. In the end, she exposes the conspiracy, overturns the wrongful conviction, and helps Lin Weidong regain control of his company. The two finally become father and daughter.