Hellandia

The Kingdom of Demon King Hellshaft. It is located on the Far East District of the continent of Balgaea. Hellshaft's castle Infermia is located here. 
==Infermia==
Infermia, from a bird’s eye view, is virtually a pentagon. The outer part is surrounded
with high and solid walls that doesn’t allow the invasion of enemies. A gate made in the
shape of the demon’s face is to the front. Within the walls, there’s a big courtyard and
various facilities. There are all sorts of sports facilities, large public baths… theaters and
execution sites.
The areas inside the castle are divided into a common area and an area controlled by
Hellander, the Demon King’s military forces. Hellander is divided into big 4 army corps,
and the four armies are controlled by the Demon King’s close aides, the
Hellzecter: Grasha, Adra, Forneus and Satanachia.
==Demon King's Tower==
Demon King’s Tower in the center of Infermia. On the upper floors,
there are places such as Hellshaft’s room and the conference room which is at the same
time the office where the Hellzecter gather and where the government affairs are held.
On the lower floors, there’s a hall to address the Hellander to the Demon King’s army.
And various facilities such as a dining room and the kitchen.
There’s an underground warehouse, an armory and treasure house, etc. 
==Hell's Gate==
30 floors below underground is the most important location of Infermia, the Hell's Gate. It is in a 100 meter wide hollow underground.