In the current reality of the Milky Way system, there are 5 worlds, each having their own residence with unique features as per their world's evolution chain? As for those who find partners of different races, their successors tend to give rise to hybrids as per the races, taking both qualities of the parents as natural selection allows for intermingling.
Our story starts in the 78th century, after the Interspecies War of the worlds, which saw almost the total decimation of two of the major supreme powers, humans and the Uoni. The battle fought had been long and tough; it was only stopped by the machine uprising from both courts, which caused a forced ceasefire and a signed peace treaty from the Evolution Co-op.
From the rise of the Evo co-op, Robotics evolved to the Hive And as of now, integrated within the 2 worlds, giving rise to a new world of mutants, the 4th world, Gaia. All individuals in the world possess unique powers to the point of which both parties. The hive, having seen peace take root so fit to give independence to its subjects to create its own prodigy, a new sect, the data sect.
A new species with unlimited knowledge from all walks of life with only one goal in mind To gather all information pertaining to reality's existence, the 5th race.