In a world abandoned by its gods, Ban, an immortal with a mysterious past, roams the desolate lands seeking revenge. The gods once enslaved humanity, but now, their neglect has left the world in chaos, ruled by dark forces. As Ban journeys, he encounters Bel, a former elven princess on a mission tied to an ancient prophecy. Together, they face an enigmatic entity—a black mist capable of destroying entire civilizations. With the lines between revenge and justice blurring, Ban must confront his past and decide the fate of a world teetering on the edge of destruction.