The apocalypse arrives, and source bugs run rampant. Su Ning binds to the instance dungeon "Disorderly Paradise." She encounters the zombie king Su Bei and trades clues about a purifier for his protection. The research institute hides a secret: Professor Chen intends to use a catalytic solution to control Su Bei and rule the world. Professor Lin's journal reveals that Su Bei is the key to ending the apocalypse, but he may also become a monster. Together, they will face the Mother and stake everything.