In a world ruled by twenty brutal clans and deadly hunters, souls are power, and survival is rare. Cities burn under endless war, where elite troops, monstrous creations, and soul powers dominate. Haruya, the only swordsman, wields a single katana, unenhanced by powers, cutting through armies and hunters alike. Alone, he faces the chaos of the Clan War, defying the world’s rules and carving a path of legend amidst blood, fear, and betrayal.