In a post-human Wild West, primitive automatons have evolved into sentient but soulless Karakuri that control the ruins of the fallen Kashū empire. A lone cowboy hunts a lost journal tied to the mystic civilization’s collapse. As he faces relentless duels with mechanized warriors, the line between man and machine blurs. Journeying through ghost towns and ancient temples, he uncovers secrets of divine retribution, human ambition, and the supernatural force behind the world’s transformation.