Zhen Xiao is a rebel who raised troops in Linxi during the autumn of Tian He thirteenth year. He colluded with the underground business association of Sudong, stirring up trouble in both regions. His rebellion contributed to the chaotic times when rebels killed their way to the walls of Yongdu. The small overseas countries and tribes also tore up treaties and launched troops during this period, followed by a drought in Nandan the following year.