The concubine Shen Qingning was reborn before her sister's tragic death in marriage. In order to find out the truth and avenge her sister, she took the initiative to replace her sister in marrying the sick and frail son of the rumored "short-lived ghost". However, she discovered that her husband was a hidden master of intrigue. The two went from testing each other to jointly planning, with her acting as a behind-the-scenes strategist to help him ascend to the pinnacle of power, eventually uncovering the truth behind his sister's death and bringing the real culprit to justice.
