From the beginning of human creation, there have always been wars, devastation and harm brought to their kind, due to jealousy and anger of others. They have always been balanced on scales, but when the Supers start to make their appearance, they all decide that they are the bad guys for being different.
Once again, they were on scales that would determine the outcome for people, years have come and gone with wars and fights between the two kinds. The others always thought that they were doing the best for their kind.
Finally, having balanced the scales the wars have died down, Supers secretly have been mixing with humans but have kept their identities secret whilst humans that knew about the Supers have been moving in with the Supers up their territory, since the modern times are more relaxed, in the public's eye.
But all it takes is a being to tip the scales and everyone’s lives can be turned upside down.