After transmigrating into the world of Slay the Gods, a paranormal invasion from the world of Mysterious Revival brings ghosts into existence. These beings are not part of the supernatural world, and they cannot be killed. Only ghosts can fight ghosts. By uncovering their rules, people learn that ghosts cannot affect gold. Humans can, however, harness ghosts and wield their power in battle. But those who do rarely live long, as they are gradually consumed by the power of evil spirits. That is why people need to harness more ghosts, even though they cannot possess both Forbidden Ruins and evil spirits at once. What will Lin Fan and Yang Jian do as they stir up the world, investigate the mysteries, and explore what lies beyond the fog?