In his previous life, Cheng Pei was a student from a poor family. Although he had outstanding talents and academics, after witnessing the "Debate of Beasts" in the palace examination, he was suppressed by a coalition of villains because he tried to expose the truth. His trusted aide and lover betrayed him, and he eventually died unjustly. After her rebirth, she took the memories of her past life with her and determined to change her destiny. However, as a member of a poor family, he struggled to move forward in a hierarchical and decadent dynasty. On the one hand, in order to maintain the old system, the villain forces obstructed her exposure and reform actions in every possible way; on the other hand, she faced the difficult choice of whether to obtain high power and live a stable life, or to uphold justice and change the dynasty. At the same time, the betrayal in her previous life made her wary of others. The situation in the dynasty is critical and the people are miserable. She must complete the changes before the dynasty completely collapses. In the process, she was constantly betrayed and exploited by various forces, and faced many crises of trust. But Cheng Pei relied on his wisdom and foresight to gradually resolve the dilemma. While taking revenge, he united like-minded people and finally tore apart the lies in the court and changed the fate of the dynasty. However, behind the success, there were also some irreparable regrets.