"He Xuan, courtesy name Wendu, was born in the He family of Chen County, and was the legitimate son of Duke He Guo. He was less intelligent and more knowledgeable. He became famous all over the world when he was in school. However, he had little fame and fortune and was far away from the court." In the spring of the tenth year of Taikang's reign in the Great Wei Dynasty, he was summoned to the capital. He refused Taizong's offer to become an official three times, but entered the East Palace, served as the prince's companion, paid homage to the Prime Minister of Gaozong, and later returned to seclusion and disappeared without a trace. "Gaozong was young but wise, long and powerful. He determined the disasters of the seven kings, ruled the world, and exerted great power all over the world. He appointed talents and envoys, and he was the general. However, he was worried and overworked in his early years and became ill due to overwork. He died in his prime and was given the posthumous title Emperor Wenwu Guangxiao." That year, the young man came with the moisture from the lush forest in the early spring of the suburbs of Beijing. For the first time in the palace, he saw such a person with vivid features and eyes, and he was fascinated and possessed by it.