The bunker, labeled " NieR-Automata mian fei xia zai -YoRHa ban you xi-", seemed to be an old research facility, abandoned and left to decay. The air was thick with the scent of dust and forgotten memories.

In the desolate landscape of a post-apocalyptic world, the machines had long since risen against their human creators, forcing them to flee or fight for survival. The city of New York, once a bustling metropolis, now lay in ruins, a testament to the devastating war between humans and machines.

In this bleak world, a group of androids, known as the YoRHa, had been created to reclaim the Earth for humanity. Among them were 2B, a stoic and skilled combat android, and 9S, a curious and gentle machine lifeform.