Strange things have come to the world for a hundred years, and human beings survive by signing parasitic contracts with strange things. Chen Mang, the last descendant of the Vajra Sect, takes the blood feud of the destruction of his sect and the disappearance of his relatives, relies on the hard skills he has practiced for 19 years, and uses pure Yang Qi to break through thousands of strange realms and die. He fights against evil spirits and crushes conspiracies. He gradually grows from a martial artist guarding a small martial arts studio to the patron saint of all mankind. Finally, with the Vajra Body, he breaks the invasion door of the high-dimensional treacherous world and gives the world a way to survive without bowing to ghosts and gods.