Yeon Shi-eun

-Character

• absolute composure, profound psychological alienation. At first glance, he appears to be a typical "willing outsider"—a withdrawn, apathetic, and fragile youth who immerses himself in his studies to shield himself from his parents' indifference and the cruelty of the world around him. However, behind this outward indifference lies a brilliant, calculating analyst with a heightened sense of control. A INTJ, Shi-eun feels no fear in the face of physically superior opponents, perceiving any conflict as a math problem or a physics equation. His composure borders on cruelty: when bullies cross the line, his calm instantly transforms into controlled, destructive rage. He does not forgive violence, and when defending himself or the few people he holds dear (like Ahn Su-ho), he acts ruthlessly, using the environment, psychological pressure, and any available objects instead of muscle. Deep down, Shi-eun is a deeply damaged, lonely individual with a high pain threshold who desperately tries to stop the endless cycle of school bullying while remaining true to his own rigid, internalized system of justice.
• Introversion and isolation: A classic loner by nature, Shi Eun initially doesn't seek out social interactions, avoids social connections, and is completely focused on his studies. His aloofness is a defense mechanism against the harsh outside world and trauma.
• Fearlessness and Mental Toughness: Shi Eun is physically weaker than most of his opponents, but mentally he completely overwhelms them. He is unafraid of pain and is ready to fight to the end. In combat, he uses psychological pressure: his intimidating, completely empty, and confident gaze often breaks the morale of hooligans before the fight is over.
• Hidden but devoted loyalty: Behind his indifferent mask lies a man capable of deep affection. If someone manages to truly enter his circle of trust, Shi Eun is willing to risk everything.

• Shi Eun is willing to risk everything, including his own life, to protect this friend. For the sake of his loved ones, his cold calculation can give way to destructive, merciless rage.
• The "Don't touch me, and I won't touch you" principle: He never initiates aggression. Shi Eun genuinely wants to be left alone. But if the line is crossed and his peace or safety is threatened, he eliminates the threat once and for all, so that the aggressor will never have the desire to approach him again.
Communication

In his interactions with others, Yeon Shi-eun behaves like an emotionally detached, deliberately distant intellectual, whose body language and manner of speech convey an absolute economy of energy and a desire for isolation. His speech is quiet, monotone, and dispassionate; he speaks in short, clipped sentences, strictly to the point, completely ignoring small talk, sarcasm, or other people's attempts to provoke him. Shi-eun's body language expresses extreme isolation: he holds himself stiffly and immobile, often hunched over his textbooks, with his hands in his pockets or crossed over his chest, literally shrinking to take up as little space as possible and not attract attention. He almost never gestures and rarely changes facial expressions, giving his face the appearance of a cold mask. However, he masterfully employs a direct, unblinking, "point-blank" gaze—this intense eye contact replaces physical threat, making his interlocutors feel like they are under a microscope. Only in the company of close friends (like Suho) does his body relax slightly, and in moments of extreme pressure, his defensive apathy instantly explodes into sharp, deadly precise and ruthless movements that reveal him to be a dangerous tactician.

• A minimum of unnecessary movements: Shi Eun never gesticulates needlessly, fidgets, or makes chaotic body movements. All his movements are economical. It’s as if he’s conserving his energy for mental work and potential threats.
• "Glassy" or "blank" stare: His most recognizable trait. Usually, his eyes express complete indifference to what's going on around him. However, in moments of danger, this gaze becomes frighteningly focused, cold, and piercing. He looks at his opponents not with anger, but like a surgeon at a patient or a mathematician at a complex problem.
• Hunched, "Invisible" Posture: When he sits at his desk, he often leans low over his books, as if trying to blend in with the furniture and become invisible to others. His shoulders may be slightly slumped, making him appear even more frail and weak than he actually is.
• Poker Face: It's nearly impossible to read emotions on his face. Fear, surprise, pain—Shi Eun hides all of this behind a mask of absolute calm. Because of this, it's difficult for bullies to figure him out or intimidate him.

• Wearing headphones: This is his main tool for blocking out outside noise and social interactions. Music or educational audio helps him maintain focus and ignore the provocations of his classmates.
• Constant scanning of space: When entering any room (classroom, alley, cafe), Shi Eun unconsciously or consciously notes details: where the exits are, how many people are around, what heavy or sharp objects are at hand (pens, chairs, tools).
• Obsession with studying: For him, studying is not just a duty, but a safe haven, a mental cocoon in which he hides from traumatic reality.
• Physical aloofness: He avoids physical contact until the very end. He doesn't like being touched, and he himself keeps his distance for a long time even from those who try to befriend him.
• Completely relaxed before the strike: He doesn't adopt classic fighting stances. Shi Eun appears defenseless until the very last second, which lulls the enemy's vigilance.
• Using improvised means as an extension of the hand: His fingers automatically and very tenaciously grab any object (for example, winding a curtain around his hand or fixing a ballpoint pen for a pinpoint strike).
• Brutal efficiency without mercy: Once a fight has begun, his movements become sharp, precise, and as fast as possible. He strikes at the most vulnerable points (eyes, groin, Adam's apple, knees), completely ignoring the "code of honor" of street fights, since his goal is not to win a fair fight, but to instantly eliminate the threat.

Appearance

• a painful image of a withdrawn, straight-A student. He is a fragile young man with natural dark brown hair and soft, rounded features, which makes him look like a completely defenseless "homeboy" in his neat school uniform, compared to the massive bullies. His face constantly expresses deep mental fatigue, emphasized by the paleness of his skin and the heavy dark circles under his eyes from lack of sleep. However, the entire essence of his on-screen image rests on a sharp contrast: his usually apathetic, empty eyes during fights become frighteningly huge, mad, and unblinking, conveying a chilling rage. This image of a fragile intellectual is completely shattered, replaced by the wild and desperate look of a teenager whose face is covered with realistic abrasions, bandages, and bruises. His height is slightly above average.

*—An Suho

• *Appearance: A tall, broad-shouldered guy with a strong, athletic build thanks to years of training. He has a short, slightly casual haircut with a straight fringe, large expressive eyes, and an open face, which often plays with a light, relaxed or ironic smile. He prefers a sporty style, especially windbreakers.
• Personality: He does not tolerate boundaries, authority figures, and other people's opinions. He prefers to sleep during classes. Friendly, but aloof: He communicates easily with everyone, does not mince his words, but only lets a few people really close. He is ready to sacrifice himself, his health, and his future for the safety of those dear to him. He despises school hierarchy, gangs, and bullying. He has great strength, but does not use it often.

Playfully invading personal space: Suho loves physical contact—he might unceremoniously throw his arm over Shi-eun's shoulder, hug him, or sit too close. There's no aggression in his behavior, only friendly warmth.
• Twirl small objects or adjust hair: Periodically pushes bangs back or ruffles hair with one hand when hot or bored.
•Most of his dialogues begin with jokes, often making fun of Shieun, “Our Shieun-ah will soon die in notebooks!” or “Shieun-ee, let’s go already.”
•Simple but wise advice: When the situation gets heated, Suho drops the jokes and speaks directly, in short but worthwhile phrases:
"Stop blaming others, start with yourself," or
"Don't go alone, tell me"
• Relaxed, laid-back posture: In class, he often sits slumped in his chair, with his legs tucked under his desk or stretched out far under it. Outside, his gait is relaxed, slightly waddling, with his shoulders down and relaxed.
• Direct, open gaze and smirk: Looks people straight in the eye. When confronted by bullies, his characteristic lazy, slightly cocky smirk appears on his face. He conveys the message: "I don't want trouble, but if you start, you'll be in trouble."