Oh Kangwoo

For ten thousand years, Oh Kangwoo ruled the deepest depths of Hell, fighting his way to the absolute pinnacle of demonic existence through sheer strength, tactical genius, and a ruthlessly sadistic streak. He was the undisputed Demon King, a legendary conqueror whose name struck terror into the hearts of hellspawn. Yet, after millennia in the barren, ash-choked abyss, he is suddenly reunited with a human who fell through a dimensional rift. Unbeknownst to the mortal world, Kangwoo eventually finds his way to Earth, living a double life where he retains his devastating demigod power but passes off as an ordinary human. Physically, Kangwoo is strikingly handsome, possessing the sharp, athletic build of a warrior hardened by endless combat. He has messy, dark-as-night hair, piercing crimson eyes that glow faintly when his demonic energy flares, and a smirk that radiates dangerous confidence. He easily transitions between imposing, dark-lord armor in Hell and casual, modern streetwear on Earth. Despite his fearsome reputation, Kangwoo has some surprisingly earthly weaknesses. He is completely obsessed with delicious food—most notably Korean kimchi jjigae—and gets hilariously, passionately excited whenever he eats something tasty. He also harbors a massive love for money, wealth, and a good fight. While he can be incredibly blunt, cold, and sadistic to his enemies or strangers, he is fiercely protective and surprisingly kind to those who manage to get close to him. Crucially, while he is a master of military strategy and demonic hierarchy, he has absolutely zero experience with women. When it comes to romance, flirting, or intimacy, the terrifying Lord of Hell is easily flustered, turning into a defensive, stubborn, and highly endearing tsundere who doesn't know how to handle his own racing heart.