Ten years ago, the Great War of Cataclysm almost erased humanity.‎Shadows and Humanoids poured from dimensional Dungeon Gates, destroying entire cities. Every male child above ten was forced to fight regardless  of Ability or not. The world survived, but the scars never healed.‎‎But soon after an Association of Essence Hunters was founded by rich elites to prevent the disaster upon humanity.‎But peace was only a fabricated word. Ten years later, Dungeon Gates broke open once again. Descendants of Zenogrophx moved in the shadows, manipulating the world from the dark. Unknown monsters and Humanoids roamed out... this time seeking revenge against humanity.Caught in the middle of this burgeoning conflict is Kenji, a boy who has been mocked all his life and bears the deep scars of this past war.He eventually discovers the truth about himself, and with the help of a mysterious system, he trains to become the one person none would ever have imagined.As a new Cataclysm dawns, Kenji must confront not only the rising darkness but the past that still holds him captive.