The Master of Heroes and Villains

In a world where heroes and villains are not just comic book characters, but real people with superpowers, there is someone named Choi Sung-Wook. He is a trainer, a mentor, a puppeteer. He doesn't belong to either side; his goal is to maintain the delicate balance of power. Boring... Maybe I should stir things up? - Sung-Wook thinks lazily, watching the training of another "savior of the world." He trains both heroes and villains, honing their skills to perfection. His methods are cruel, cynical, and full of mockery. He pits his students against each other, manipulates them, and plays on their weaknesses. For him, it's all just a game, and heroes and villains are mere puppets in his hands. He enjoys his power, watching his charges fight, suffer, and die. But what will happen if one day the game spirals out of control? Will Sung-Wook be able to maintain the balance, or will his cynical amusement lead to catastrophe?