Casshern awakens to find his world reduced to a corrosive wasteland. Lost in a future he does not recognize, he struggles to stay a step ahead of those who wish death upon him.

An encounter with the mysterious Lyuze offers Casshern a fragmented glimpse of his role in the Ruin. After stumbling upon a community of “dying” robots, he discovers the true depth of his infamy.

Lyuze reveals her reason for hating Casshern, who offers her a chance for revenge. When robotic bandits attack Ringo and Ohji, Casshern comes to their rescue, but his rampage terrifies those he hopes to save.

Casshern desperately seeks to unravel the mystery of his dark past. An altercation with Dio, his robotic mirror image, could provide answers to his many questions - or at least get him killed.