There Is an Invincible Demon System in My Body

Tang Fei, who accidentally traveled from the earth, accidentally opened the invincible demon system. "Sleeping on the job, pretending to be crazy and acting stupid, just to survive?" "Sorry, it doesn't exist." "Are you a genius and have a supreme upgrade system?" "Sorry, it's mine." "Are you the god of planes, able to travel through planes and rule all realms?" "Sorry, from now on, you are under my control!" "Not convinced?" "Kill!" As the strongest host in the history of the system, Tang Fei embarked on a journey of crushing across all realms with his unparalleled attributes. "If I strike with this sword, you may die!" Tang Fei.