In 2086, a tyrant regime forces the "Yorkshire" race into extreme cybernetic modifications, slowly turning them into mindless weapons.
Xu Sheng is their deadliest brainwashed cyborg. His reality shatters during an invasion by the Krok Tribe, who wield "Obsidian Marrow"—a living, parasitic black metal. In battle, a monstrous enemy warrior spares Xu, revealing himself as Xu's long-lost father fighting to free their enslaved people.
Alongside rebel survivor Lin Lan, Xu uncovers a horrifying truth: the regime's promised "retirement paradise" for cyborgs is actually a slaughterhouse dismantling Yorkshires to fuel a cosmic war machine. Awakened to the lies, Xu must fuse with the dangerous Obsidian Marrow, risking his life to lead a desperate rebellion and reclaim his humanity.
When the line between man and machine vanishes, what does it mean to be truly alive? Would you embrace a lethal parasite to win your freedom?
