I should try to make a proper map one day, at least for the kingdom of Fratetia (the country of the main protagonists). Their world is geographically similar to ours, although the shapes of the continents change depending on the area.

Raniscis lives on the equivalent of the European continent ;
Ketzoa lives on the equivalent of the South American continent ;
Noo (their sister) lives on the equivalent of the African continent ;
and Laonghan (the youngest of the siblings) lives on the equivalent of the Asian continent.