Sheng Ning was ordered by her stepmother to deliver a divorce letter to the seriously injured Marquis Ye Beichen on their wedding night, but she found a fatal arrow wound on his body and rescued him. After Ye Beichen woke up, his memory was confused and he mistook Sheng Ning as his savior. He tore up the divorce letter in public and declared that he would pamper her for the rest of his life. The Sheng family was furious, and his stepmother secretly sent someone to assassinate Sheng Ning. Ye Beichen used thunder to kill Sheng Ning. Ting tried every means to protect his wife, and the two began to live a married life that was superficially affectionate but actually had their own thoughts; Sheng Ning's medical skills intersected with Ye Beichen's enemies in the court, and Ye Beichen gradually discovered that Sheng Ning's hidden life experience was related to his father's old case; a mysterious letter from Jiangnan revealed the truth about Sheng Ning's biological father being framed ten years ago, and Ye Beichen was Sheng Ning was the key witness in the case that year; the two teamed up to collect evidence, but encountered a crazy counterattack by the prince's gang; Sheng Ning saved the queen with a silver needle at the palace banquet and obtained palace asylum. At the same time, Ye Beichen was deprived of military power and placed under house arrest; Sheng Ning sneaked into the cold palace to find the late emperor's secret edict, only to discover that Ye Beichen's biological mother was once a noble concubine in the palace, and the prince was not Orthodoxy; in the end, Ye Beichen raised an army to clear the emperor's side, and Sheng Ning appeased the people as a doctor. The two stayed together in blood and fire, and used the prescription written on the back of the divorce letter to become irrefutable evidence; after the dust settled, Ye Beichen asked Sheng Ning to write a new divorce letter, but this time he divorced himself through the door of the Sheng family, willing to be her husband and subject.
