Warrior in Turbulent Han Dynasty

His name is Liu Qiang. Four years ago, he woke up and found out that he had been transported to ancient China. The owner of the body was a soldier who was dumped in a mass grave. An old Taoist saved him. It gradually dawned on him that he was now in the later Han Period, which was among the shortest-lived regimes in the long history of China. Will he change history?