Promoting a secondary wife to legal wife? The matriarch of a noble house divorces and remarries her brother-in-law.

Su Qingwan fought against mothers-in-law and concubines to reclaim her sister's dowry and expose the hypocrisy of the Lu family. Through her meticulous schemes, the truth behind Li Xueying and Lu Feng's murder of Xie Zhaolan finally came to light. She thought she would hate the Lu family for the rest of her life and that, once her vengeance was complete, she would stay far away from them. Little did she know, after her revenge, she would spend the rest of her life bound to Lu Jing. As the Commander of the Jinyiwei, Lu Jing suspected from the very beginning that Su Qingwan was an impostor. He watched coldly as she fought the Lu family with relentless ferocity. Knowing that Lu Jing was a living Yama, Su Qingwan used a "honey trap" to deliberately seduce him, attempting to prevent him from further investigating her true identity. Lu Jing thought to himself that this sister-in-law of his was beautiful yet ruthless, with despicable methods; once he unmasked her identity, he would surely send her to prison. Unexpectedly, in the end, he was the one who built a cage for himself, imprisoning her instead.