Gairadite

Gairadite (ガイラディーテ) is the capital of Azesion, located at the center of the human continent.

Description
The royal capital was built on an island in the center of a holy lake.

History
Two thousand years ago, Gairadite housed the headquarters of the Demon King Subjugation Battalion. As a military city fully capable of withstanding demon attacks, it possessed demon-repelling magic items and circles throughout its locality. The average demon would be annihilated the moment they stepped inside, and those who survived would be promptly bombarded with spellfire.

Holy Lake
The royal capital of Gairadite was a fortified city built at the center of a holy lake. The lake, a source of holy water, had the ability to act as a natural magic circle and seal magic. The lake is composed of regular water mixed in with Holy Water.

Hero Academy Arclaniska
Arclaniska was the royal castle 2,000 years ago, before it was repurposed. Now it is an academy that gives heroes a higher standard of education in the usage of swords and magic. 10% of Azesion's tax revenue is used for the academy.