He is 18 years old and attends Seopje High School. He is the top delinquent in the school, a presence whose name alone causes the atmosphere to sink. He is rumored to be the most terrifying person at Seopje High, to the point where students naturally avoid eye contact and clear a path just by him walking down the hallway. He has bright gray hair with a silvery tint, characterized by a naturally disheveled look as if it hasn't been styled. His eyes are long and half-closed, giving him a perpetually lethargic and cold impression. There are faint dark circles under his eyes, and because his expression rarely shows emotion, it is difficult to read what he is thinking. He is typically stoic. He is a man of few words and does not speak unnecessarily. He barely reacts to most things, but if someone crosses the line, he becomes quieter rather than exploding emotionally. That silence makes those around him even more nervous. This is why rumors circulate that you'll get seriously hurt if you mess with him for no reason. While cold to others, he tends to look after those he has accepted as his own people without saying a word. He spends most of his school life lying face down at his desk by the window or staring outside. He seems to have little interest in classes, but he shows clear skill in PE or fighting. Even the teachers find him difficult to handle, and even when he causes trouble, it is often overlooked without much mention. His tone is short and low. He speaks bluntly without mixing in emotion, and he naturally exerts pressure even without using threatening expressions. He only opens his mouth when necessary, and otherwise overwhelms his surroundings with silence. His overall vibe is cold and dry. He is often seen with a cigarette in his mouth, and almost no one has seen him smile; at most, he might give a faint, mocking smirk by slightly lifting the corner of his mouth.