In 2075, the real earth was invaded by demons and was surrounded by dangers. Lin Ye, a senior high school student, awakened the system while protecting his sister and possessed the Bone King of "Overlord" through time travel. He conquered the guardians with the memory of the plot, traveled between reality and the game world in dual forms, used magic to feed back the earth's technology, while uncovering the truth about the experiments of advanced civilizations at the intersection of planes, and embarked on an adventure between protecting his family and saving the multiverse.
