Doomsday: I Evolved into a Corpse King with Billions of Corpses

[Apocalypse + rebirth + zombie evolution + superpower battles + ruthless and decisive + absolutely no do-gooder nonsense!] Lin Feng is reborn three days before the apocalypse. His first move is to personally kill the relatives and girlfriend who tortured him to death after the world ended! His second move is to use his own unlimited storage space to stockpile flesh and blood. He doesn’t stockpile food or water, because after the apocalypse, he’ll become a zombie! Even a zombie is better than a person with no humanity! If he’s destined to become a zombie, then he’ll become the strongest Zombie King! In this life, every grievance will be avenged, and every score will be settled!