Xu Shu (date of birth and death unknown) was born in Changsheng County, Yingchuan County (now Changgedong, Xuchang, Henan Province). At the end of the Eastern Han Dynasty, Liu Bei was a character, and later returned to Cao Cao and became an official in Cao Wei. Xu Shu's real name is Xu Fu (in Romance of the Three Kingdoms, his name was mistakenly changed to Fu Shan due to misunderstanding of historical books). He is the child of a poor family. Revenge in his early years was saved by his comrades. Later, it was renamed Xu Shu (Wei Lue's Biography of Xu Shu still adopted its real name) and entered the Confucian Academy. After the rise of Zhongzhou soldiers, they took refuge in Jingzhou with the same county and made friends with Zhuge Liang, Cui and others. When Liu Bei was stationed in Xinye, Xu Shu went to defect and recommended Zhuge Liang to Liu Bei. When Xu Shu went south, because his mother was captured by Cao Cao, Xu Shu had to bid farewell to Liu Bei and enter Cao Ying. Later, after artistic treatment, "Xu Shu entered Cao Ying without saying a word" was widely circulated. And Xu Shu is known as a model of filial son.
Huang Xu (? -227 years), the word, He Dongyang (now southeast of Hongdong, Shanxi). Cao Wei was a famous soldier in the Three Kingdoms period. Originally a captain riding under Yang Feng's account, Yang Feng took refuge in Cao Cao after being defeated by Cao Cao, and repeatedly made meritorious military service under Cao Cao, and participated in several major battles such as Guandu, Chibi, Guanzhong and Hanzhong. In the Battle of Fancheng, Huang Xu defeated Guan Yu as a reinforcement of Coss, and was praised as "the wind of Zhou Yafu" by Cao Cao because of his strict military management in this campaign. After Cao Pi proclaimed himself emperor, he added Huang Xu as the right general and died in 227 AD, calling him Qiang Hou.