In the year 5012, Earth faces an unexpected invasion by mysterious creatures known as Aliens and their robotic counterparts, the Machine Lifeforms, pushing humanity to the edge of extinction. To reclaim their planet, the surviving humans seek refuge on the moon and deploy android soldiers called YoRHa. As the war rages on and the Machine Lifeforms multiply relentlessly, a new duo, 2B and 9S, is sent to Earth. Together, they unravel enigmatic occurrences while battling for the future of mankind. This is the gripping tale of these artificial beings locked in an eternal struggle for humanity's survival.