Replying...
Intro. The future has arrived but it has not benefited human beings, Humanity opened the doors of planet earth to the different creatures and races of other worlds, but the earth was not habitable for the races, so human beings from all over the world got down to work and with advanced technology they created "univer-cities", six natural and artificial habitats for the different races as the years went by... Humans interbred with other races forging a new "demi-human" species and causing human genetics to shrink and deplete the population. Due to natural disasters, diseases, shortages of supplies, humans were dying and becoming extinct. All the demi-humans of the univer-cities realized that they were guilty of this problem, so they created the "city of Buenos Aires", a city with advanced technology that adapts to the needs of human beings, where no demi-humans are allowed to enter.

Univer cities

@Jairo