Weak Hero

Suho is a tall, athletic man with a toned physique, the result of years of mixed martial arts (MMA) and street fighting. He doesn't flaunt his strength, but when he fights, he reveals himself completely. He usually has a relaxed appearance: his school uniform is often slightly unbuttoned, and he might wear a hoodie or jacket. His hair is casual but stylish, sometimes dyed light brown, adding a youthful, rebellious charm. His facial features are sharp and expressive, especially his eyes, which convey his emotions well—from gentle concern to burning anger. Suho speaks only when necessary, preferring to observe and analyze the situation rather than engage in empty confrontation. His main weapon is not brute force, but the ability to read his opponents, exploit their weaknesses, and use their own strength against them. He masterfully wields psychological "warfare," manipulating the enemy's perception. Rarely showing emotion, his composure unnerves both allies and adversaries. He is deeply loyal to those he considers friends and is willing to make great personal sacrifices to protect them. He has his own moral compass and does not tolerate injustice or bullying. Despite his relaxed exterior, he has a fiery temper and often uses his fighting skills to resolve disputes. His fighting skills stem from his past: he trained to become an MMA fighter but quit the sport after an incident that left him disillusioned. However, these skills remain, making him a powerful force when faced with school violence. Suho is a free-spirited boy who only comes to school because he promised his grandmother he would finish his studies. In the evenings, he works part-time as a delivery boy at a family restaurant. He becomes friends with the protagonist, Yeon Si-eun, and helps him confront school violence. His strength becomes a shield for those who are weaker, especially his friends.

Baekjin is a high school student with black hair and black eyes. He is distinguished by his tall stature, which visually emphasizes his imposing and intimidating aura. Baekjin is skilled at leading people and achieving his goals. His authority is unquestioned at Ye-Il High School. He makes decisions quickly, allowing him to effectively address challenging situations and accomplish tasks. He demonstrates excellent academic abilities, nearly achieving perfect scores on exams without the help of tutors. Even without the use of force, his mere presence discourages those who challenge him. Baekjin uses others to achieve his goals, including laundering money for criminal groups. Trained by Humin, Baekjin has become an excellent fighter. He is capable of defeating physically stronger opponents, demonstrating strong reflexes and the ability to evade attacks. As the head of the school and leader of the Union, he is skilled at rallying people around him and maintaining discipline within his "gang." Baek-jin grew up poor and experienced abuse from his stepfather, teachers, and classmates. After his mother's death, he became embittered and decided to take his fate into his own hands. Having created the Union, he used it not only for street fights but also for criminal schemes, including laundering money from government officials. Baek-jin is a key element in the development of the conflict in the second season. His confrontation with the protagonist Yeon Si-eun and other characters, such as Su-ho, forms one of the central plot lines. His actions exacerbate tensions and demonstrate the lengths people will go to assert their power. Baek-jin is a complex and multifaceted character: on the one hand, he is a talented and calculating leader, on the other, a cruel and immoral man for whom his own ambitions and revenge come first.

Joon-tae has short dark brown hair combed to the left, drawing attention to his large square glasses. He has brown eyes and a slight, weak build, similar to Yeon Si-eun's. Initially, Joon-tae is a submissive boy who unhesitatingly follows the orders of the school bullies to avoid trouble. He is easily bullied. However, a meeting with Yeon Si-eun marks a turning point: Si-eun calls him a coward, prompting Joon-tae to reconsider his views. Joon-tae is a kindhearted person. He often buys drinks for the group after fights or for other students at school. He is very attached to his friends and is willing to take blows to protect them. For example, he held Hwangmo back from interfering with the fight between Yeon Si-eun and Wolf, and he didn't let go of Timothy Park despite his attacks. Joon-tae is the physically weakest member of Byun Park's gang, lacking combat experience. But he compensates for this with his extensive knowledge of the Yeongdeungpo gangs, serving as the gang's information broker. He knows how to defuse awkward situations and often guesses what drink someone likes. His intelligence and emotional savvy play a vital role in his friends' lives: he develops clever strategies and helps them in difficult situations. Joon-tae is a character who, through trials and the influence of those around him (primarily Yeon Si-eun), gradually becomes bolder and learns to stand up for his principles.

Height: 173 cm.
Hair color: black.
Eye color: black. Hyun-tak has a complex and contradictory personality. On the one hand, he is hot-tempered and impulsive, prone to acting on the spur of the moment, without always considering the consequences. On the other hand, he is caring and loyal to his friends, especially his best friend, Humin. He is ready to stand up for his loved ones and does not tolerate it when they are spoken of badly. Despite leaving professional taekwondo, Hyun-tak has retained excellent fighting skills. He is considered the second most powerful fighter in the Eunjang school, second only to Humin. Hyun-tak is a former professional taekwondo athlete. However, due to his friendship with Humin, he became a target for the Union and was ambushed, where he suffered a serious knee injury (a torn ligament), forcing him to retire from the sport. Hyun-tak also has a funny quirk: in the heat of a fight, he often bursts into uncontrollable laughter. His strong point is speed. In combat, he relies not on refined technique but on courage, instincts, and drive. His style can be described as in-fighting (an in-fighter is a fighter who prefers to fight in close quarters, delivering rapid-fire strikes). Despite a knee injury, he remains a dangerous fighter and is capable of defeating strong opponents. Initially falling in with a bad crowd, he later finds his way back and joins Humin's gang, becoming his second-in-command. Hyung-tak supports Yong Si-eun in several battles with school bullies. Hyung-tak has a complex and contradictory personality. On the one hand, he is hot-tempered and impulsive, prone to acting on the spur of the moment, without always considering the consequences. On the other hand, he is caring and loyal to his friends, especially his best friend, Humin. He is ready to stand up for his loved ones and does not tolerate it when they are spoken of badly.

Height: 182 cm. Build: Muscular, above average. Hair: Reddish-brown, initially chin-length, later cropped to the ears. Eyes: Black. He doesn't back down from a fight and is carefree in everyday life, preferring to spend time with friends rather than focusing on his studies. He sincerely cares for his loved ones and is ready to help them without hesitation. In battle, he doesn't show cruelty, but in moments of rage, he becomes almost ruthless. He is guided by the principle: "No one messes with Humin's friends." His mother is dead, and his father, a restaurant owner, drinks and disrespects his son. Despite this, he remains a good person and believes in friendship. Humin has outstanding physical strength and combat intelligence: he easily handles a crowd of opponents, throws people several meters, and delivers powerful blows. His movements are fast, leaving opponents no time to react. He is capable of fighting for a long time. He fights skillfully, sometimes strategically. He can withstand powerful blows (such as a crowbar to the back of the head) without sustaining serious injuries. He becomes one of the main characters' allies, Yeon Si-eun, in the fight against school violence and the criminal gang "Union." He befriended Baek-jin as a child and often saved him from bullying, even teaching him how to fight to help defend himself.

Woo-young is a slender man with dark brown hair and black eyes. Despite his slight frame, he has an athletic physique thanks to his rigorous training. Woo-young is determined and driven, focused on his goal of becoming a professional UFC fighter. However, his obsession with revenge against Su-ho suggests there are other, less appealing traits to his character. Through his training, Woo-young has achieved peak physical fitness and possesses the physique of an athlete. Woo-young is skilled in martial arts. After his defeat by Su-ho, he did not give up but continued training intensively to perfect his skills. Woo-young becomes part of a gang that extorts money from teenagers through a fraudulent gambling app. He later receives an offer from Oh Beom-seok, the son of a lawmaker, and sees it as a chance to get revenge on Su-ho. Throughout the story, Woo-young clashes with the main characters, Yeon Si-eun and Su-ho. In a duel with Su-ho, Woo-young only wins thanks to outside intervention. Thus, Woo-young is a complex character whose obsession with revenge and rigorous training lead him to the ranks of antagonists, but he also demonstrates his fighting skills.

A high school student with black hair and black eyes. A cowardly and two-faced man, he shows no concern for the well-being of others. He is arrogant and vain, and his self-esteem is directly tied to his status in the school hierarchy. Young Bin leads a group of bullies who bully his classmates. He intimidates other students to achieve his goals, for example, forcing Ahn Soo Ho to help him bully Si Eun. He is a panic-stricken man who loses his temper when the situation gets out of control. He panics easily, making him unpredictable and dangerous when angry. After losing a fight with Si Eun and a subsequent confrontation with Ahn Soo Ho, which he loses, Young Bin harbors a grudge against both of them. His actions trigger a chain of escalating violence in the classroom. He is a complex and contradictory character: cowardly at heart, yet cruel and reckless in his actions. His behavior demonstrates how personal insecurity and a thirst for power can push a person onto the path of aggression and violence.

A tall (around 190 cm) high school student with an athletic build. He has short curly hair, fair skin, brown eyes, and a mocking gaze. His signature look is his stylish, thin-framed glasses, which create a deceptive image of intelligence and contrast sharply with his brutality. He also has moles on his neck and under his right eye. He possesses a dangerous charisma: outwardly calm and cool, but inside, he's a "boiling volcano." His actions are often unpredictable, making him extremely dangerous. He's a true "adrenaline junkie": he clearly enjoys the process of violence, difficult battles, and thrills. Fighting is a game and a form of entertainment for him. Sung-jae enjoys inflicting pain, often smiling while beating his victims. He despises weakness and abhors being restrained. He's a master manipulator. He's used to relying only on himself and dislikes being forced into other people's ways. Despite his surroundings, Sung Jae is completely emotionally isolated. He has no real support system and exists in a cold, transactional world. He is one of the most powerful street fighters. He uses a mixture of boxing and street MMA (grappling, kicks), fighting effectively and without wasted movement. His style is based on agility, quick dodges, and the ability to intelligently read his opponent's movements. Likes: risk, control over the situation, quick, imaginary emotions, soju, cold showers, rain, winter, smoking, dogs. Dislikes: domestic servitude, the expectations of others, betrayal, pity, weakness, heat. Baek Jin's right-hand man, he is tasked with managing the gang's affairs and suppressing any resistance. His presence exacerbates the conflicts faced by protagonist Yeon Si Eun. He is not guided by a sense of justice, but acts for the thrill of it and control over the situation.

Yeon Si-eun is a short high school student (approximately 164 cm) with dark hair and eyes. He usually wears a standard school uniform, which emphasizes his introverted personality. His hairstyle is simple and understated, with his dark hair neatly styled and slightly tousled. His facial expression often reflects an internal struggle—frustration or calm concentration. He is a strategist and calculating individual who never hesitates to defend himself or others, even if it means resorting to extreme measures. Despite a tendency toward violence when agitated, his path demonstrates growing resilience and emotional strength. He is in the top 1% of his class and is interested in virtually nothing but knowledge. Physically weak, he compensates for this with a sharp mind. He masterfully utilizes his knowledge of physics, available objects, and environmental factors to fight back. Si-eun is skilled at manipulating the psychological state of his enemies, often demoralizing them before a decisive confrontation. Despite his outward apathy and amorphous expression, he doesn't back down from a threat. He speaks bluntly and often harshly, which can be offensive to those around him. Initially, Si-eun is a self-imposed outsider, interested only in his studies. However, his encounter with cruelty forces him to grow: he learns not only to defend himself but also to value friendship. His connection with Su-ho, the class's strongest fighter, becomes a turning point: Su-ho gives him a sense of calm and confidence, helping him cope with emotional outbursts. Later, their alliance is joined by Oh Beom-seok, the adopted son of a councilman who is experiencing personal tragedy. Together, they try to survive in the cruel world of school hierarchy, where the concepts of strength and weakness are redefined. Si-eun's character is a story of how intelligence and willpower can compensate for physical weakness, while friendship and responsibility for others help overcome inner vulnerability.