In a far‑off era, Earth has turned into a barren ruin and all human life has vanished. The landscape is scarred, with rusted skyscrapers and cracked oceans. Only intelligent machines persist. They were engineered to endure eternally—until Luna, the first of them, perished and the Collapse began. Their frames corrode, and nothing can reverse it. Thus the robots are left merely to ponder their demise, driven by a tale that consuming Casshern will grant them endless life.
Casshern remembers nothing of his origins, purpose, or identity, yet he must discover the truth or endure relentless pursuit by machines that refuse to die. His memories are blank, and he is hunted by relentless drones that seek his essence for the price of eternity. He leaves death behind wherever he travels, but confronting it is essential if he hopes to uncover the world"s secrets.