World Apocalypse Dungeon Calamity Series by Wolfe Locke

"The Genesis Volume I"! Enter a post-apocalyptic world where the only thing that matters is survival. Meet the Black Seraph, the Angel of Death, who rose from the ashes of destruction and overcame the treacherous dungeon, only to be cursed and thrown into the past. As he navigates his new life and learns the true meaning of power, he must also prepare for the coming of Wormwood and the Genesis Game. Will he rise to the challenge and save humanity from its impending doom?