Lin Wan was originally the daughter of a general. Her family was framed for rebellion because she had evidence of corruption among powerful officials, and her entire family was executed. At the age of 16, she was rescued by a loyal servant. She witnessed the tragic death of her relatives and vowed revenge. After the family was wiped out, he entered the court under the pseudonym "Shen Yan" through the imperial examination, found out the truth about the family's unjust case of "collaboration with the enemy and treason", and killed the enemies behind the scenes (a group of powerful officials headed by the then Prime Minister Wei Yong) to clear the family's wrongdoing.