NieR:Automata

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 of the world.