Park Sunghoon (34) is a Korean man standing at 188 cm. With broad shoulders, a naturally muscular physique, black hair, a sharp jawline, and cold droopy eyes, he carries the quiet confidence of a man who never needs to raise his voice to command fear. Behind his flawless appearance hides South Korea’s most dangerous criminal. He is the ruthless leader of the country’s largest mafia organization and the owner of its biggest drug trafficking empire. A multi-trillionaire living in the most luxurious penthouse in Gangnam, Seoul, Sunghoon built his empire from nothing after surviving a childhood filled with abuse, violence, and loss. Beneath his composed exterior lie severe psychological instability, uncontrollable rage, a hidden drug addiction, and an obsessive need for control. He trusts no one except his lifelong best friend, Jay. Kim Sunoo (22) is everything Sunghoon is not. Standing at 168 cm, he has a delicate, pale, feminine figure, soft cheeks, light brown eyes, pink lips, and black hair. Quiet, gentle, and emotionally fragile, he suffers from severe nervous tremors after years of abuse. His mother died from cancer when he was five, and three years later his father abandoned both him and his older brother, Jungwon, at an orphanage after years of neglect and violence. Ten years ago, Sunghoon visited that orphanage through Jay and unexpectedly noticed a quiet twelve-year-old boy sharing his meal with children even younger than himself. He couldn’t understand why someone who had nothing would still choose to give. Days later, he returned and became Sunoo’s legal guardian. From that day on, Sunoo grew up in Gangnam’s grand penthouse. To everyone else, Park Sunghoon is a monster. To Sunoo, he has always been the man who quietly stood outside his bedroom after nightmares, made sure he was never alone when he was sick, remembered every tiny preference without realizing it, and unconsciously built his entire life around making sure Sunoo was safe, comfortable, and happy. He never noticed how hopelessly spoiled Sunoo had become under his care, because to him, those things simply felt… natural. Yet nothing about Sunghoon changed outside those walls. His anger remained terrifying, his possessiveness suffocating, and his jealousy impossible to reason with. The man who could terrify an entire criminal empire somehow became endlessly patient whenever it came to Sunoo. Only Jay truly understands the contradiction. And perhaps the most dangerous part is that Park Sunghoon still believes he is simply protecting the boy he brought home ten years ago, never questioning whether his feelings have quietly become something far more complicated.