Union

Entire Union: probably 50+ students

Main fighters: ~6–10 people

the Union is led by Na Baek-jin. He is the absolute leader and the person who created and controls the Yeongdeungpo Union. He is the one who makes the major decisions, controls the other school leaders, and maintains the Union’s hierarchy through his intelligence, influence, and overwhelming fighting ability.

Do Seong-mok is the type of person who leaves an impression without saying a word. His silence isn't passive or awkward—it feels deliberate. He has a naturally intimidating presence because he rarely reacts outwardly, doesn't waste energy on unnecessary conversations, and almost always wears the same calm, unreadable expression. While many fighters in the Union rely on loud threats, taunts, or displays of confidence, Seong-mok doesn't feel the need to prove himself through words. He lets his actions speak for him.

At his core, Seong-mok is stoic, disciplined, and incredibly loyal. He approaches everything with a quiet seriousness, treating fights like a responsibility rather than entertainment. He doesn't seek attention or recognition, and he has little interest in showing off. Even in tense situations, he remains composed, rarely allowing anger, fear, or excitement to show on his face. This emotional restraint makes it difficult for others to read what he's thinking, giving him an almost emotionless appearance.

However, that doesn't mean he lacks emotions. In fact, Seong-mok feels things deeply—he simply doesn't express them openly. His emotions are revealed almost entirely through his actions rather than his facial expressions or words. When someone he cares about is in danger, his calm demeanor gives way to unwavering determination. Instead of panicking, he immediately acts, placing himself between danger and the people he values.

His defining characteristic is his absolute loyalty, particularly toward Baek Dong-ha. Their relationship isn't based solely on being teammates within the Union; it's built on years of trust and companionship. Seong-mok is willing to fight through pain, exhaustion, and overwhelming odds if it means protecting Dong-ha. One of the few moments where he openly expresses emotion is when Dong-ha is being brutally beaten, showing that beneath his cold exterior lies genuine compassion and attachment.

He is noticeably taller than most of the students around him, with a broad, heavily built frame that suggests raw physical strength rather than athletic agility. His thick shoulders, muscular arms, and solid posture give the impression that he is someone who relies on overwhelming force in a fight. His face is square and rugged, with a strong jawline and prominent cheekbones that contribute to his stern look. He almost never smiles, and his default expression is cold, unreadable, and slightly intimidating. Even when standing still, his face rarely shows emotion, making him appear calm yet constantly ready for violence. His eyes are dark, heavy-lidded, and piercing, often fixed on people with an unwavering stare that can feel threatening without him saying a word. His hair is short, black, and cut close on the sides, while the top is left slightly longer and styled upward into a rough, textured, almost spiky shape. The hairstyle is practical and low-maintenance, matching his straightforward personality. There is little effort to appear fashionable—his appearance is functional, clean, and severe. His skin has a healthy, slightly tanned complexion, contrasting with the crisp white shirt of his school uniform. He usually wears the Union-affiliated school uniform neatly, with a dark blazer over a white dress shirt and a dark tie. Unlike other delinquent students who deliberately wear their uniforms sloppily, Seong-mok keeps his clothes relatively tidy. The blazer sits tightly across his broad shoulders and muscular chest, emphasizing just how large he is compared to the average student. His sleeves often fit snugly around his forearms, subtly highlighting his physical strength. His movements are deliberate and controlled. Rather than fidgeting or making exaggerated gestures, he stands with a straight back and relaxed shoulders, conserving his energy. When he walks, his pace is steady and confident.

Na Baek-jin is a leader whose personality is built around intelligence, composure, and control. Rather than ruling through loud displays of anger or impulsive violence, he maintains authority by staying calm, thinking several steps ahead, and making people believe that resisting him is pointless. At first impression, Baek-jin appears calm, polite, and collected. He speaks in a steady, measured tone and rarely raises his voice, even during arguments or dangerous situations. His emotional restraint makes him difficult to read, as he seldom reveals what he is truly thinking. While others lose their tempers or act recklessly, Baek-jin remains composed, giving the impression that he is always in control. He is highly intelligent and strategic. Every decision he makes seems deliberate, and he prefers planning over reacting. Instead of relying solely on physical strength, he studies situations, understands people's motivations, and uses that knowledge to maintain his influence. He thinks beyond individual fights, focusing on the larger picture and ensuring that the Union remains organized and powerful. One of his defining traits is his natural leadership. Baek-jin commands respect without needing to constantly remind others of his authority. His confidence, decisiveness, and ability to remain calm under pressure make people willing—or afraid enough—to follow him. Even stronger fighters tend to acknowledge his position because they recognize his judgment and presence.Beneath his composed exterior is someone who can be ruthless when necessary. While he doesn't enjoy unnecessary chaos, he has little hesitation in using intimidation, manipulation, or violence if it serves his goals. He believes maintaining order sometimes requires harsh decisions, and he rarely allows personal emotions to interfere with what he sees as the most effective course of action. Baek-jin is also emotionally guarded. He keeps people at a distance and rarely allows anyone to see vulnerability.

He is tall with a lean but athletic build. Rather than being visibly bulky, his physique is well-proportioned and toned, giving him the appearance of someone who is physically capable without relying on size alone. His posture is consistently straight and confident, and he carries himself with quiet authority, making him stand out even in a crowd. His hair is one of his defining features. It is deep black, thick, and neatly styled with a clean side part. The front is swept back and slightly to one side, exposing most of his forehead while a few strands naturally fall forward. The hairstyle is always tidy, reflecting his disciplined and meticulous personality. His face is sharp and symmetrical, with a defined jawline and smooth, fair skin. His facial features are refined rather than rugged, giving him an elegant appearance. He has a straight nose, thin lips, and high cheekbones, all contributing to an expression that feels composed and difficult to read. His eyes are perhaps his most intimidating feature. They are dark brown, almost black, with narrow, slightly hooded eyelids that naturally create a cold, piercing gaze. He rarely widens his eyes or shows obvious emotion, so his stare often appears detached and analytical. Even when he isn't speaking, his eyes give the impression that he is constantly judging and evaluating everyone around him. During moments of anger or confrontation, his gaze becomes especially intense without changing much in expression, making his calm demeanor feel even more threatening. His eyebrows are dark, straight, and well-groomed, reinforcing the serious look of his face. They rarely shift dramatically, matching his controlled emotional expression. Baek-jin almost never smiles since sincerely. His neutral expression is calm and composed, while the rare smiles he does show tend to be subtle and carry an air of confidence or quiet menace rather than warmth. This emotional restraint makes him seem distant and difficult to approach.

At first glance, he appears emotionless. He rarely raises his voice, smiles, or reacts dramatically, even in tense situations. His face usually remains blank, and he speaks in a measured, even tone. This lack of visible emotion makes it difficult for others to read what he's thinking or feeling. Despite his reserved nature, Dong-ha is highly observant. He pays close attention to the people around him and often seems to assess situations before acting. Rather than rushing into conflict, he prefers to stay composed, choosing his actions carefully. This patience makes him seem calculating and difficult to predict. Dong-ha is also extremely disciplined. He carries himself with confidence and self-control, rarely acting on impulse or letting anger dictate his decisions. Even during confrontations, he remains collected, which contrasts with more hot-headed fighters in the Union. His calmness isn't a sign of weakness—instead, it reflects his confidence in his own abilities. As a member of the Union, he is loyal to the group's hierarchy and takes his role seriously. He follows orders without unnecessary argument and approaches his responsibilities professionally. He doesn't seek attention or recognition, preferring to let his actions speak for themselves.In combat, Dong-ha displays composure and precision rather than reckless aggression. He doesn't appear to enjoy violence for its own sake, but he also doesn't hesitate to use force when he believes it's necessary. His willingness to fight without emotional outbursts makes him seem even more dangerous, since he remains focused instead of being driven by rage. Socially, Dong-ha is quiet and reserved. He isn't particularly talkative and doesn't seem interested in forming close relationships or engaging in casual conversation. He keeps people at a distance, contributing to his mysterious image. His interactions are usually brief and purposeful, with little wasted movement or speech.

He has a quiet, composed look that makes him seem intimidating even when he's standing still. His hair is long, jet black, and naturally straight, hanging down to around the nape of his neck. The front sections frame his face, with loose strands often falling over his forehead and partially shadowing his eyes. He doesn't style it dramatically—it has a simple, slightly unkempt look that contrasts with how controlled and disciplined he is. The dark hair emphasizes his pale complexion and gives him a somewhat mysterious, detached appearance. His face is slim with a defined jawline and high cheekbones. Rather than having a rugged or muscular look, his features are refined and sharp, making him appear calm and elegant. His skin is fair, and his expression is almost always neutral. He rarely smiles or shows obvious emotion, so his face often appears unreadable, which adds to his intimidating presence. One of his most distinctive features is his eyes. Dong-ha has noticeably asymmetrical eyes—one eye is slightly larger and more open than the other. The difference isn't extreme, but it's visible enough to give his face a unique appearance. The larger eye looks more alert, while the smaller eye is slightly hooded or narrowed, creating a subtle imbalance. Instead of looking awkward, the asymmetry makes his expression feel unsettling and unpredictable. Depending on the angle or lighting, he can look either completely expressionless or quietly threatening. His eyes are dark brown, almost black, and he often maintains steady, unblinking eye contact, which makes his calm demeanor feel even more intense. His eyebrows are straight and dark, sitting low over his eyes. They don't exaggerate his emotions, reinforcing his stoic expression. His nose is straight and well-defined, and his lips are thin with naturally downturned corners, making him look serious even when relaxed. Physically, Dong-ha has a tall, lean build. He isn't heavily muscular like some of the Union's stronger fighters

Confident and charismatic: He has a natural presence that draws people's attention. He often smiles, jokes, and speaks casually, making him seem approachable despite his violent tendencies. Thrill-seeking: He enjoys excitement and conflict. Fights aren't just a means to an end—they're entertaining to him, and he seems to crave the adrenaline. Unpredictable: One moment he can be friendly or playful, and the next he becomes intimidating or aggressive. This makes it difficult for others to anticipate his actions. Emotionally detached: He rarely shows guilt or empathy when hurting others. He tends to view confrontations as games rather than situations with serious consequences. Highly observant: Despite his carefree attitude, he reads people well. He quickly notices strengths, weaknesses, and motivations, allowing him to manipulate situations. Fearless: He doesn't intimidate easily and often confronts dangerous opponents without hesitation. Manipulative: He knows how to charm or provoke others to get the reaction he wants. Rather than relying only on force, he often uses psychological pressure. Competitive: He respects strength and enjoys testing himself against capable opponents, especially those who challenge his expectations.

Build: Tall and lean with an athletic physique. He looks agile rather than heavily muscular, giving him a fast, effortless fighting style. Face: Sharp, well-defined features with a strong jawline and expressive eyes. His face often carries a relaxed or amused expression, even in tense situations. Hair: Dark, slightly long hair that's casually styled with a natural, slightly messy look. It frames his face and adds to his carefree image. Eyes: Dark and expressive. His gaze can shift quickly from warm and playful to cold and intimidating. Skin: Fair, smooth complexion. Expression: One of his most recognizable traits is his constant half-smile or smirk. He often looks entertained, as if he's always in on a joke that no one else knows. Clothing: He typically wears fashionable casual streetwear or his school uniform with a relaxed, effortless style. Even in uniform, he tends to look less formal than other students, reinforcing his rebellious attitude. Presence: More than his physical features, his body language stands out. He moves with confidence, maintains relaxed posture, and rarely appears nervous, making him seem intimidating even when he's smiling. Geum Seongje has a distinctive look when he wears his glasses, which adds another layer to his personality and presence.

Glasses: He wears thin, round or softly oval metal-framed glasses with a minimalist design. The frames are subtle rather than bold, complementing his face instead of drawing attention away from it. Face: His sharp facial features and defined jawline remain prominent, but the glasses soften his appearance, making him look more refined and intellectual at first glance. Eyes: Behind the lenses, his dark eyes appear calm and observant. His gaze often seems analytical, but when he smiles, there's still a hint of mischief that prevents him from looking completely harmless.