World

Summary
Simon and Emily takes place in a world where humans once existed, an alternate-earth sort of planet. The existence of humans is regarded as legend or myth. In this place, violence is to a minimum and the happiness of its people is the most important thing. Legislation and law are most based around the mental state of citizens, everything else mostly being dismissed. It is illegal to be unhappy, so as you can guess, jails are very different when compared to regular Earth.

Magic
In this world, there isn't need for the drugs that humans get addicted to due to biological differences. Instead, magic takes the place as one of the biggest bads you can do. In the context of Simon and Emily, ghosts aren't real, but spirits are. These "spirits" are the driving force behind the types of magic that exist.