They said that the end of the world would be long and painful, with plenty of signs and disaster. Well, there were none. Everything was gone in less than a second. A sudden unknown electromagnetic wave swept the Earth, mutating ninety percent of humanity into fast and strong zombies. Dr William Toh should have been one of them, except he retained his mental capacity and gained a unique physiology instead.  And he was not alone. The dangers of this new world lurk in every corner as he embarks on his journey to reverse the mutation wave. Will he succeed? Or will he succumb to the deadly politics and war that could potentially wipe out what's left of humanity instead?