Heaven and earth are not unique, but are composed of countless "epochs" superimposed. At the end of each era, its essence will be condensed into an "epochal coffin", in which the most original "Tao" and the most powerful "relic" of that era are buried. The protagonist Li Xian, who was originally a top restorer of ancient books in modern times, accidentally traveled through time and merged his soul with the most mysterious and powerful "Ancient Coffin of Taichu" in all eras. Not only can he summon the "relics" of the strong men of all ages from their coffins to fight, but he can also "bury" the strong men of the past, analyze and devour their principles, and turn them into his own use.
