A modern youth accidentally traveled through time and became Chen Qingzhou, a royal guard of the Great Wu Dynasty. As soon as he woke up, he was plotted by the county magistrate's minions. At the critical moment of life and death, he awakened to the system of killing monsters and becoming stronger, unlocking magical skills and his combat power skyrocketed. He slayed demons along the way and tracked down the shocking conspiracy of the county magistrate to collude with demons and harm the people. From investigating the case alone to sweeping the demon cave, he thwarted all the evil spirits, and even exposed the true face of the demon clan of the national preceptor and the fake emperor. Chen Qingzhou uses his body as a royal guard to slay demons, counterattack and upgrade, and uses his system and strength to eliminate demons in troubled times, and ultimately protects the country and the people, and takes control of the world.
