World of Kanstein
 

From what has been explored so far, surface civilizations now remain only on the four continents — Verdantglade, Cinder Ridge, Aqualis, and Loong Haven. 
Legends speak of a fifth land, Aethyris, whose brilliance once eclipsed all others. Now, only scattered ruins whisper of its lost splendor.

Verdantglade
 

A land famed for the Dryason. Within dense, sprawling woods, the Auroradrasil takes root.
Here, it is green upon green upon green. The flora is so lush one might even get "drunk on oxygen."
At the foot of the Auroradrasil lies Drasilgard. If you have the chance, you should pay the villagers a visit.

Cinder Ridge

A land of towering peaks and endless sands. Crystal veins once spread across the land, and its depths overflowed with rich ore. Ancient arcane constructs once roamed freely, and countless marvels of magitech were born here. Whatever calamity befell this realm has long since buried its former glory. Now, only Fortburg remains, a lone bastion of life.

Aqualis
 

The Ocean Realm.
Homeland of the Merean. Its waters have shaped a culture all its own. Tales of yokai run rampant here, and the creatures along these shores are just as bizarre as the legends.
Some even claim a legendary half-yokai once appeared here. The way they insist on it... it might not be just a rumor. I'd love to see one for myself someday...