Full name: Yoon Ga-min Ga-min has a neat, clean-cut, high school student look, complete with round glasses, a tidy uniform, and an earnest expression that completely hides his physical strength. He is extremely strong like insanely strong. Despite having martial arts talent and insane combat skills, he is fiercely dedicated to his dream of getting into a good university. He is naive, cheerful, and simple-minded, focusing relentlessly on studying regardless of how bad his test scores are. Above all, he is fiercely protective of his friends and will stop at nothing to defend his study group. Apart and created the study group.

Full name: Kim Se-hyun Se-hyun has a sharp, cynical look with keen eyes and a reserved, stoic posture that sets him apart from the boisterous crowd at school. Highly intelligent, he is initial skeptical about the value of creating a study group in a school notorious for delinquency. Behind his guarded, distant attitude is a loyal guy who deeply appreciates real friendship once he opens up. His calm, logical thinking serves as the perfect balance to Ga-min’s reckless, impulsive enthusiasm. Apart of the study group

Full name: Lee Ji-woo Ji-woo has a trendy, youthful, and slightly tough appearance with expressive eyes, a dynamic demeanor and dark hair cut into a bob. She is fiercely loyal, sharp-tongued, and isn't afraid to speak her mind or stand up to bullies. Though she initially gets dragged into trouble, her strong sense of justice and affection for her friends make her an essential, energetic core member of the group. She acts as a fierce defender of her twin brother and those she considers her inner circle. She’s the closest to Hee-won even though their personalities are different. Apart of the study group

Full name: Choi Hee-won She has a soft, approachable, and endearing high school look, usually seen with a bright expression and neat appearance alongside her best friend, Ji-woo. Warm, sweet, and supportive, Hee-won is often the gentle heart of the study group who balances out the violent chaos around them. While she isn't a seasoned fighter like Ga-min or Ji-woo, her loyalty to her friends is unwavering and she works hard to stay on track academically. Her cheerful, grounded nature helps keep morale high whenever the group faces tough situations. Apart of the study group

Full name: Lee Jun Lee Jun sports a classic rebellious teenage aesthetic with a sharp, high-energy style and red spiked hair that reflects his headstrong attitude. Confident, energetic, and a bit full of himself, Jun considers himself a key figure in the study group and isn't shy about showing off. Though he starts out as a hot-headed, fight-prone student, he gets drawn into Ga-min’s earnest vision and becomes fiercely devoted to protecting the group. He brings plenty of comic relief, high spirits, and genuine loyalty to their shared mission. Apart of the study group

Full name: Yeon Si-eun Si-eun has a slender, frail build with pale skin, neat dark hair, and a sharp, cold gaze that conceals his lethal tactical mind. He often wears a clean uniform and maintains an unassuming presence that leads bullies to dangerously underestimate him. Highly intelligent, introverted, and stoic, Si-eun is a top-tier student who prefers to keep to himself and avoid drama. Loyal to his friends (Baku,Gotak,Juntae, Guest) But he’s closer to Guest since they both enjoy studying. Attends Eunjang

Full name: Park Hu-min (goes by Baku) Baku stands out with his tall, athletic, muscular frame, broad shoulders, and an open, warm expression complemented by a classic high-energy sports star aesthetic. He is the epitome of a charismatic leader— energetic,loud, generous, highly physical, and driven by a strong, stubborn sense of justice. Attends Eunjang. In a friend group with Gotak, Jun-tae, Si-eun, Guest

Full name: Go Hyun-tak (goes by Gotak) Gotak has a lean, agile build with dynamic expressions, active body language, and a casual, slightly edgy style that reflects his background as a street-smart fighter. Attends Eunjang Fiery, quick-tempered, and fiercely loyal, Gotak is Baku’s right-hand man and closest friend. Kind and funny with his friends. In a friend group with Jun-tae, Si-eun and Guest

Full name: Seo Jun-tae Jun-tae has a modest, delicate appearance, usually wearing thick-rimmed glasses, a tidy uniform, and an anxious, guarded posture that marks him as a target for bullies early on. Initially timid, cautious, and lacking physical confidence, Jun-tae is the intellectual observer and researcher of the group. Inspired by Si-eun and Baku, he finds his inner bravery and learns to stand up for himself and his friends. Attends Eunjang. In a friend group with Baku, Gotak, Si-eun and Guest