Lu Chen, a former professional esports player, is shoved into a horde of zombies by the teammate he trusts most on the day the apocalypse begins.
On the brink of death, he awakens the ability [Death Rewind]: whenever he dies, he returns to 24 hours earlier with all his memories intact.
From then on, he walks a lonely road:
On his first rewind, he tries to change his fate of betrayal, only to discover that someone understands the “future” better than he does;
On his second rewind, he hunts high-level zombies to stockpile resources, only to encounter “half-zombies” who retain human intelligence;
On his third rewind, he finally catches up with his betrayer, only to learn that the man is merely a pawn in the hands of a higher existence...
When Lu Chen discovers he is only “Experimental Subject No. 47,” when the apocalypse is revealed to be an experiment conducted by higher-dimensional beings, and when war between time-wielding ability users is about to erupt
he must transform from “avenger” into “watchman,” join forces with the other experimental variables, and break a cycle of fate spanning millennia.