Great Imperial Master of the Ming Dynasty

Li Yan, who was supposed to travel to the world of immortality, failed to do so. He accidentally traveled to the fourth year of Zhengde in the Ming Dynasty in history, and obtained the system of subduing and eliminating demons. [As a fledgling immortal cultivator, you should kill a ghost who is working for the tiger to prove your determination to conquer demons] Looking at the tasks on the system panel, Li Yan felt his eyes go dark. You bastard system, where can you ask me to find scoundrels for you in this era? Until one day, Li Yan, who was oppressed by the landlord in the village, accidentally hacked his thug to death with a hoe. [Congratulations to the host for completing the task, the completion rate is 50%, and the reward is +1] At this time, Li Yan discovered that this stupid system seemed to be unable to be deceived. ..... After lying and lying, Li Yan discovered that he had become the only extraordinary person in this demon-free era! Standing in front of you now is the first national master of the Ming Dynasty and the master of the emperor, the guardian of the Central Plains, and the Optimus Prime of China...