Magica Universe

The magica universe has four dimensions - the human dimension, the magical dimension, heaven and hell. Each of these is rather straightforward, however...

Heaven contains angels and spirits allowed to reside there. Hell contains devils and spirits allowed to reside there. Each of these has a ruler - Avisel and Terrafer respectively. The magical dimension contains all magical beings and creatures. It has no ruler.

The human dimension is the one you're in right now. (You seriously don't get that?) There should be a designated ruler, but ...