Setting in the Great Mother universe
Union City was built from the refugees of both sides of an offworld nuclear war and the local denizens of the rural Valerian state. Following the refugee crisis, Valeria was annexed by the Empire of New Hope and Union City became a major trade and financial capital of the empire. Additionally, the city contains the Valerian military spaceport.
Notably, the city is largely staffed by slaves encased in rubber suits (usually made into drones) and features numerous bizarre kinks.