During the Dali period of the Li Kingdom, Emperor Lin Yu was seriously ill, and the demon queen Qin took control of the court and killed the emperor's heirs.
Among the emperor's seven sons, except for Lin Chengyun, the legitimate son of Demon Queen Qin, only Lin Chengyou, the sixth prince born to Concubine Rong, and Lin Chengping, the seventh prince to Wang Cairen, are still alive.
The sixth prince was frail and sickly since childhood and almost died many times. The seventh prince was born with a disabled right leg due to the violent pulling by the midwife.
One was weak and the other was disabled, but the Demon Queen did not take them seriously.
Concubine Rong knew that the palace was in great danger at this time, and she was afraid that the sixth prince would be poisoned by the demon queen, so she asked the imperial doctor Shen Lin'an to help. With the help of the Shen family and her mother's family, she fostered the sixth prince to the home of Shen Weitu, the head of the former imperial hospital in Jiangnan.
The sixth prince grew up together with Shen Zhiyun, the youngest daughter of the Shen family, and Rong Yiyang, the legitimate son of the Rong family.
After the Rebellion of the Two Kings, the sixth prince was promoted to the throne, and Shen Zhiyun also made a marriage arrangement with Mu Wuwei, the then top military scholar.
Everything was going in a good direction, but the eldest son of Mu was worried that Mu Wuwei's marriage to the Shen family would be uncontrollable in the future, so he changed grooms on the day of the wedding.
Then there was Shen Nanfeng.
The only person in Li Kingdom today who has the title of Princess Princess with his mother's surname. Shen Nanfeng was originally the eldest daughter of the second wife of the Mu family. The Mu family was not a prince, but Shen Nanfeng was granted the title of princess because of her mother.
At that time, Shen's mother was so sad that she was ordered to do business all over the world. Mu Wuwei had no face to face his mother, so he invited himself to Northern Xinjiang and never married.
There was a war in northern Xinjiang, and Mu Wuwei, the general who defended the city, was missing. When the news came back to the court, Long Yan was furious. The third prince interceded for Mu Wuwei and was punished by the emperor with fifty sticks. He was met by Shen Nanfeng who was passing by, and from then on, there was a different kind of affection between the two.