Japan has become a dismal land of death and chaos. The Department of Supernatural Interventions, once a shield against the paranormal, collapsed in the face of a golden man’s ruthless uprising. The nation is now ruled by yokai and divided into factions, each clawing for dominance. Cut off from the world, the last remnants of humanity cling to a brittle survival. Yet in the shadows of a ravaged country walks a lone wanderer. The Slayer. Feared by yokai and mistrusted by humans. Driven by guilt, vengeance, and a vow he cannot break, he seeks not only to reclaim what yokai have stolen but to silence the whispers of his past.