The waste material Shen Zhao traveled to the Cangting world where the Summoning Book determines fate. He was sacrificed by the temple at the beginning, and when he was about to die, he awakened the incomplete Book of the Divine Court of All Realms, which can summon biological larvae, disaster species, civilization remnants and king beasts from countless different worlds. On the surface, he only has the lowest-level black iron tome, but secretly he uses alien creatures to build the Tiance Mansion, support the Dragon Court, destroy the temple, swallow the old gods, and finally establish the Summoning Court across all realms.
