NieR:Automata tells the story of androids 2B, 9S and A2 and their battle to reclaim the machine-driven dystopia overrun by powerful machines. Humanity has been driven from the Earth by mechanical beings from another world. In a final effort to take back the planet, the human resistance sends a force of android soldiers to destroy the invaders. Now, a war between machines and androids rages on... A war that could soon unveil a long-forgotten truth...

When the Corrupternment's schemes interfere with one of his promises, Valvatorez inadvertently sparks an uprising that is felt throughout the Netherworld and beyond.