Su Wan Ning was framed by her cousin Lin Wan'er, misunderstood by her husband Gu Mingyuan as being unfaithful, and was brutally persecuted. Her soul was trapped in the old house, and she witnessed the abuse of her five-year-old son Gu Chengyuan, but was unable to help. Gu Chengyuan endured dormancy and secretly left home after completing his studies. At the age of eighteen, he won three yuan in a row and became the number one scholar in a new subject. He used the power of the court to pursue the truth, used the mute woman as a witness, and collected personal and material evidence to expose the crimes of Lin Wan'er and others, and clear his mother's grievances. Then he put aside his hatred in accordance with his mother's last wish, changed his name to Su Yuan, married a wife and had children, and eventually became famous throughout the ages, interpreting filial piety and righteousness throughout his life.