Impressionistic Villain: Achieving Wizarding Supremacy Through Experimentation

[Villain][Semi-Behind the Scenes][Darkness] What's the image of a villain in your mind? Of course, it's a big boss leading a bunch of smaller bosses! Forensic pathologist Levi opens his eyes to find himself as Hick, a frail apprentice in the wizarding world. Just as he's bewildered by this fantastical life, a mysterious "experimental system" suddenly activates—it doesn't teach magic, but specializes in forbidden techniques. While other wizards are overwhelmed by the terrifying side effects of experiments and hesitate to proceed, Levi only sees "parameters to be optimized." "Fix what's wrong!" The system grants him unparalleled corrective power. Weak flesh and blood? Energy conflicts? Mental breakdown? In a series of insane and precise modifications, these fatal flaws are forcibly erased or distorted into new "characteristics." Thus, those forbidden experimental subjects, originally destined to go out of control, be destroyed, or become scrap, are reborn under the system's blessing. Every successful breakthrough in an impossible experiment meant the addition of one (or a group) powerful "minions" to his ranks, capable of striking fear into the entire wizarding world. He himself could then undergo enhancements without any side effects! These monsters, created and "modified" by his own hands, would become his most loyal henchmen and legion. "As long as I modify them enough, I will eventually reach the top," he firmly believed. He himself, and the terrifying legion behind him composed of forbidden experimental subjects, would become a living calamity engulfing the entire wizarding world. He was the source of all terror and chaos.