Ten years ago, Shen Chongshan, a famous general in the northern border, was accused of "collaborating with the enemy and neglecting relations". The entire Shen family was overthrown, but Shen Lingyi was the only one who survived by chance. Ten years later, she married into the regent's palace in the name of her deceased sister, just to get closer to the center of power and help the Shen family reverse the case.
But the person she had to face was Xiao Jibai, who had personally signed the execution order. Everyone in the world knew that he was cold-blooded and ruthless, and that he had great power, and she thought that she was just a pawn being pushed into the game. It wasn't until piles of old evidence surfaced that she discovered that from the hidden secrets of the palace to the old ministry in the north, from the fragments of the Ministry of Rites to the blood edict of the late emperor, he had already paved the way to the truth for her in the darkness.
What she wants is for the Shen family to be innocent, and what he wants is for her to live safely. When an old case brings out the black debt of food and salary, the suspicion of imperial power and the murderous intention in the court, the two can only test step by step between love and use, truth and price.
This is a plot to overturn a case involving a substitute wife, and it is also an affectionate protection that has been delayed for ten years.