Don't Cry, Master. Madam, She Is Willing to Be the Butcher's Pet.

Jiang Mingyue bought the sin slave Fu Yunxi as her husband, but was rejected. Fu Yunxi abandoned her after regaining her status as Taifu. The desperate Ming Yue married the butcher Chen Er, but Fu Yunxi blocked her marriage on the wedding night. At this time, the identity of Prince Chen Er was exposed. Fu Yunxi colluded with the Northern Barbarians to kidnap Mingyue, but was finally defeated by Chen Er. Three years later, Chen Er, who has become the emperor, finds Mingyue who sells tofu and finally stays with him. Fu Yunxi lost everything because of treason.