Also known as Prefect Xu, he is the prefect of Jizhou City. He is young, having achieved the third highest rank in the imperial examinations and rising to prefect by age twenty-five. He hails from the Xu family, one of the Four Confucian Scholars of Qinzhou. He is described as noble and pure in demeanor, wearing simple clothing with no adornments. His residence was modest. He was strict about anti-corruption principles. He inquired about Ji family's medicinal herb and food storage during the epidemic, and was offended when Ji Ruyue offered him a gift chest, refusing it outright.
