Demonization is a term that was not unfamiliar to Vance. He had heard about it many times and even had quests where he had to fight beings who had become demonized. Demonization occurs when one's mental state reaches a point where one can no longer control their sanity. Their feelings and beliefs are so strong that they begin to mix with their mana. It begins to form a black core within a person until one day, it reaches a point where it will explode, causing the emotions of that person to explode and turn them into demons.
This was what was currently happening to Prince Edward. His hatred for Alice had become an obsession that formed a core within him, and now that he was about to lose everything, he could no longer control himself, and his core exploded within him. His skin began to turn gray as his pink hair fell out. His eyes became a dark red color, and his fingers elongated. Even the teeth in his mouth fell out and began growing new razor sharp teeth.