There are multiple planes of existence bordering the physical world, each an impossible manifestation of weird, reality-bending stuff.
What makes conscious beings different to animals is their ability to connect to these planes of existence and draw energy from them in the form of magic, the style of which is determined by the specific plane.
Cosmology
In-universe, the true cosmology is as yet unknown.
Out-of-universe, the whole thing started as a stupid pun.
Principal Geography & Features
The main setting, Neyush, is a small planet with three main continents and a whole lot of coean between them.
Two moons orbit the planet, causing powerful tides and influencing both the geography and cultures of the world.
Initial Active Setting
The initial scale is city-wide - Yenagun is a large, industrial mining and fishing city in eastern Pfemba.
Since the Great War, it's become probably the most culturally diverse city on the planet thanks to its importance both on land and for sea routes.