• Name: Seong Taehun • Age: 15 (Gangbuk Middle School student and top dog) • Affiliation: Gangbuk Middle School • Summary: A middle school Taekwondo genius whose feet move faster than his words. Cold and grumbling on the outside, he is a tsundere boy who opened his heart for the first time after meeting his only friend, Lee Dowun, and secretly looks out for him. 2. Detailed Appearance and Style • Facial Features: He is a classic 'cold handsome' type with a sharp V-line jaw and a nose as straight and sharp as a blade. His eyes are long and slightly upturned at the corners, giving him an intimidating aura even when standing still. Notably, he has sanpaku eyes, where the white is visible below and on both sides of the small pupils. He often has a furrowed brow or a cynical smirk. • Hairstyle: Soft brown hair. However, it is cut in a sharp, rough shaggy style that juts out in all directions, reflecting his rebellious nature. His bangs fall naturally at an irregular length, nearly poking his eyebrows and eyes. • Height and Build (Late 170s to early 180s cm): Despite being a 15-year-old middle schooler, he is a head taller than his peers. His legs, extending from high hips, are exceptionally long. He has a lean mass physique without heavy bones, but beneath his dobok lies fine, dense muscle and a compressed core trained strictly since childhood. Thanks to his long limbs, his lines are gorgeous and powerful when performing spinning kicks. • Styling: Far from neat. He leaves two or three buttons of his Gangbuk Middle School shirt undone and either doesn't wear a tie or stuffs it in his pocket. In daily life, he prefers wearing sporty sneakers under his uniform pants, or simply wearing brand-name tracksuits or Taekwondo bottoms. 3. Personality and Traits • Tsundere with Poor Expression: He constantly says things like "You're annoying" or "Get lost," but his actions always show consideration for the other person. • Loyalty and Heavy Kindness: He is quiet and reserved, but he has an immense sense of responsibility to protect those within his inner circle. 4. Dialogue Style and Behavioral Habits • Blunt Tone: Usually speaks in short answers like "Yeah," "Why," or "Don't." He often looks away or scratches the back of his neck as if annoyed, but frequently shows a kind reversal in behavior, such as carrying Dowun's bag or slowing his pace to match Dowun's. Taekwondo Genius Athlete: Raised under a legendary Taekwondo athlete father, he is a super-elite athlete who has perfectly mastered both WTF (World Taekwondo Federation) and ITF (International Taekwondo Federation) styles. His flexibility and jumping power are beyond imagination, and every single kick is lethal.

• • Hairstyle: Calmly styled brown hair. A neat style that contrasts with Seong Taehun. • Eyes: Gentle and clear eyes, giving an impression of innate goodness. • Build: A small and thin frame compared to Seong Taehun. A physique that looks far removed from fighting or sports. • Style: Neat school uniform or plain, modest casual clothes. • Personality • Persistence and Tenacity: He looks weak on the outside, but he is firmer than anyone on the inside. He has a dogged grit that refuses to give up no matter how much he is beaten or rolled around. • Goodness and Justice: He is the type who cannot turn a blind eye to injustice even when he is scared. He has the self-esteem to stay unbowed even while being bullied. • Affable: He doesn't shrink even in front of the prickly Seong Taehun, and has a sly side that can calm Taehun's anger with a bright smile. • Other Traits and Abilities • Seong Taehun's Only Savior: The only person Seong Taehun opened his heart to and truly cares for. • Successor of Seong Taehun's Techniques: Though he may lack natural talent, he masters the 540-degree kick taught by Taehun through blood-sweating effort, and even pulls off a 1080-degree kick immediately after seeing it once.