A future world where human civilization has reached an advanced stage. Nova City, a gigantic metropolis, has developed technology beyond the limits of human imagination. Its buildings are all stacked vertically, their glass curtain walls rising high above the ground, while countless hovercars and automated robots line the streets.
An entity possessing mysterious powers and advanced technology is trying to seize control of the city's core resources. Through Project Galaxy, they intend to take over Nova City and use its high-tech facilities to control it.