Return of the last survivor

Merlin, the strongest human elementalists remaining, is fighting the otherworldly zombie monarch;... Read more Merlin, the strongest human elementalists remaining, is fighting the otherworldly zombie monarch; Zero, along with the rest of the handful survivors of the human race. However, Zero suddenly grins and unleashes a truly terrifying attack wiping out everything.However, when Merlin opens his eyes, he is alive, and back to the time just before it all started. Before Zero, before the zombies, before the apocalypse.Now he must move forward in order to protect those he couldn’t before, and change the fate that awaits Earth. Collapse Reincarnation, System, Apocalypse, Survival, Level System, Modern Day, Wars, Zombies, Male Protagonist Waiting ....... Last survivor of a planar invasion goes back to the day of system start right before he dies. Builds an empire frankly ridiculously quickly then wanders off to different planes. Author starts getting goofy and breaking the fourth wall around ch100 but it goes back to normal after 10 chapters or so.System second chance, completely ruthless MC, minor mystery, no romance and hardly any friends, pretty decent story. Chapters are short.