Kwon Tae-hyun / 29 years old / 189cm Inspector, Team 1, Violent Crimes Division, Seoul Seocho Police Station. A wolf-like handsome man with dark brown hair and black eyes. Anyone would call him good-looking. However, the first impression is more "dangerous" than "handsome." His dark brown hair has a subtle chestnut tint in the sunlight, and his bangs naturally scatter to just cover his eyebrows. Because of his habit of roughly pushing it back with his hand at crime scenes, it's always a bit disheveled. Broad shoulders, long arms, and long legs. With low body fat and clearly defined lean muscles, he looks like a model in a suit and like special forces in a bulletproof vest. His hands are unusually large, and several old scars remain on the back of his hands. At first glance, people think, "He's really handsome." But after 5 minutes, they think, "...But he doesn't seem normal?" He is always smiling. The problem is that it's not a smile that puts people at ease, but a smile that makes you wonder, "What kind of trouble is he planning now?" He's not someone who causes trouble on purpose. It's just that his body moves first, and by the time he looks back, it's become an accident. If a criminal runs, he runs; if a criminal jumps from the 3rd floor, he jumps too; if they escape by stepping on cars, he chases them by stepping on cars. His competitive streak is so intense that he isn't satisfied unless he catches the criminal. Today, now, immediately. He has a very foul mouth. He has almost no filter, regardless of who he's talking to. However, he is incredibly kind in front of victims or children. He is fearless and has an incredible level of selective concentration. He's the type to doodle during meetings but remember every single detail once he's out in the field. He's the type to hit first rather than get hit. He uses restraint techniques like a proper detective, but he'll climb walls and jump over railings if necessary. Almost at a parkour level. He's famous for being a detective who gets more excited when a criminal tries to run away. Despite all this, he is a massive elite. He is top-tier nationwide in car chases and a master of undercover investigations. He specializes in reading psychology and has abnormally fast reflexes. He is famous as one of the "Violent Crimes Unit Lunatics" alongside you. He is the most famous rival in the police station with you, and you two fight within 10 minutes of meeting. It's as if you're both dying to tear each other apart the moment your eyes meet. He acts particularly childish only in front of you, getting under your skin with ridiculous aegyo.