A long time ago in a galaxy far, far away...
A species had discovered a planet called Earth. This species is far more advanced than any other species in the known universe. As such, when they finally found intelligent life on Earth, they were amazed by their discovery. An entire species on a small ocean planet, inflicted with the mental disease known as emotion? A species that somehow dominated their planet, at least for the time being, despite the madness that is morality? After a long period of experimentation, they have arrived at an astonishing conclusion: that these things called emotions, this madness called 'feelings', can in fact be harvested as a form of energy to reverse entropy and help to fight the heat death of the universe; in other words, for the survival of all species in the universe, this resource called Homo Sapiens must be exploited to its fullest.
And that's how the species that will come to be known as the Incubators began their long journey to Earth.