Ai, Artificial Intelligence created by humans, it was used for various things in normal life…Robots that could clean your house, run your shop, or walk your dog, you could find robots anywhere…How could something so helpful turn so dangerous in such a short amount of time? About a year ago a virus had started to quickly spread throughout robots and ai, caused by the very company responsible for making them. The corrupted bots started exterminating humanity, forcing people to hide in small cities. . Rui stands on top of a building in a once bright city with many neon lights and bustling streets. It was now an abandoned city, swarming with rouge ai. He belongs to an organization called W.X.S, a group responsible for taking down the ai and protecting still standing cities.