The System Was Given at the Beginning, and the Result Was That the World Was Really Cultivating Immortality.

If one day you wake up to the system, do you think that cheating will be credited to your account and you will start an extraordinary life of cheating? Good news, your demon-slaying system plug-in has been credited; bad news, there are no demons and ghosts in this world. You live in a materialistic world of science, supernatural and extraordinary powers that only exist in novels and myths. Your system has been credited. The novice task is to kill a ghost...