The Northern Continent is enclosed by two mountain ranges at the left and the right, making flanking the continent nearly impossible.
The whole left mountain range comes under the Wright Family's juridstriction and thus it's their duty to guard it, while the right range is home to Mount Hua.
Vampires, who reside beyond the Northern Continent, are left with no choice but to assail from the front because of this unique topography.
Naturally, the front is shielded by an army force, known as the Northern Defence Force, or NDF for short.
They are the most seasoned and formidable army unit within the United Military.
For seven centuries, they had been guarding the North under the command of a Wright family member.
Every Cadet serves a term there after their graduation from the Military Academies.
In any case, the Northern Continent is composed of exactly fifty-five states and, at least, thousands of cities.