Global Class Change: I Chose Chaos Demon God at the Start

When humanity awakens to a world where everyone must choose a class, most pick safe, conventional paths. Not him. He selects the forbidden Chaos Demon God class and vows to repay every grudge tenfold and every kindness a hundredfold. Starting from the shadows, he cultivates ruthlessly, schemes cunningly, and shows no mercy to enemies. As his power grows from hidden genius to unstoppable force, the world will learn why crossing him was their final mistake.