Dungeons, Monsters, Extraordinary Powers—In a world where the abnormal has become everyday life, Atori longed for a Guild that saves people from Monsters. However, he was abandoned as useless with his Skill "Fire Resistance," and spent his days as a Corporate Slave at a Black Company, crying all the while. At that moment, by saving a weakened chick, Atori's destiny changes drastically! The free and strongest Dungeon Life of a former Corporate Slave, who partnered with a legendary Phoenix, grandly begins!!