MMORPG: Rise of the Strongest Skeleton Berserker

One day earth was sent a mysterious message. [An apocalyptic event is about to occur] No one knew what it meant but when the timer ended earth was nothing but a wasteland. Humanity was gone and only one person remained. This human was able to defeat a God-level beast and acquire and acquire level a God-level skill [Regress] but it was at the price of his life. Shortly after he died Axel was sent back to the past when he was 18 and when it was only three minutes before the apocalypse. With the knowledge he had Axel was going to protect himself and the ones he loved in this new world of survival.