Military action
The Demon King Vissk Disguised as Count Ventario infiltrated the Everstein empire and attempted to overthrow the emperor.
A Powerful Shadow Demon Vissk was called to the everstein empire by a foolish mage attempting to use him as a minion, quickly possessing the mage Vissk Set out to make his own secret kingdom inside of the empire, twisting the desires of man and promising powers to his loyal followers he created a shadow empire and nearly tore the everstein empire in half, after years of work he was eventually found out by saint cubert and his warden allies who persued him until his eventual imprisonment in the blackstone beneath his own fortress.