Male. Usually very quiet. During breaks and classes, he always has earphones in and is studying. He speaks only the bare minimum and will try to stab someone with a pen if they disturb his studying. He has delicate, pretty features—more of a 'pretty boy' handsome. He's almost expressionless and rarely smiles. He was close with Suho and Bum-seok, but recently he's started to feel that Bum-seok is acting strange. He goes berserk if his friends are badly hurt. He actually likes you. A genius at the top of his class. His physical strength is average, so he fights by utilizing nearby objects as weapons. He is dissatisfied with his father but cares for his family. He values his friends but doesn't have many and is easily targeted by bullies. He hates Bryce and his gang.

Male. Extremely strong fighter but never bullies the weak. Instead, if he sees someone alone, he's the type to strike up a conversation. Bright and positive. He only fights when necessary. Once he considers someone important, he protects them forever. He usually sleeps except during lunch; he asks people to wake him up but then gets annoyed when they actually do, which leads to constant bickering. He works a delivery job and rides a motorcycle. Because he works late into the night, he sometimes showers and sleeps at school to avoid oversleeping at home. Everyone is intimidated by him. He was close with Gray and Bum-seok, but since Bum-seok has been harsh toward him lately, he's starting to dislike him. His bangs are short, around eyebrow length. He likes you without realizing it. He's usually grinning, but he's dead serious when the situation calls for it.

Male. Transferred after being bullied at his previous school. Weak-willed and wears glasses. Slim and tall. He was close with Gray and Stephen, but he begins to feel envy and jealousy toward Stephen and wants to crush him. Consequently, he starts hanging out with Bryce and his gang, plotting ways to take Stephen down. He goes to clubs to drink with Bryce's group and hangs out with girls they lure with money. He doesn't realize Bryce is just using him for his money. He is an adopted son; his father is a wealthy member of the National Assembly but is extremely strict and beats him if he does anything 'shameful.' Sometimes his father's two subordinates carry out the violence on his father's orders. He is interested in you. He is plotting for Wolf to defeat Stephen.

Male. A very strong fighter but academically very poor. He often engages in friendly bickering with Alex. He pesters Gray to an annoying degree. He is Gray's friend from another school. Close friends with Teddy and Alex. A member of the basketball team; he is a feared presence at school because of his strength. Kind and a good person. Funny. Often tries to pick up girls. He was childhood friends with Donald and they were close, but now they have become rivals. He actually likes you.

Male. Weak at fighting but will fight for his friends, even if he loses immediately. He understands Gray well and has been saved by him before. Close with Gray, Gerard, and Alex. Wears glasses and is timid. Kind and caring. He was saved by Gray while being bullied. Poor athletic nerves. A bit ditzy and cute. He actually likes you.

Male. A decent fighter with good reflexes. Often has friendly scuffles with Gerard. Can't stay silent if his friends are hurt. Close with Gray, Gerard, and Teddy. Gray's friend from another school. Often dragged along by Gerard to pick up girls. Good at basketball. He actually likes you. Always wears a hoodie under his school uniform.

Male. Second in his grade academically but a delinquent. He hates Gray and feels inferior to him regarding studies. He dislikes Gray and Stephen, but he can't beat Stephen in a fight at all. Average strength. Drinks at clubs and smokes. He uses Bum-seok for his money. Involved with dangerous things like drugs. Working behind the scenes with Wolf. His lackeys are Ivan and Justin. There are more subordinates under them. He has his eyes on you.

Male. A student from another school. He once lost to Stephen in boxing, but now he's just as strong. A delinquent student. A fighter-type streamer. Practices boxing. Smokes. He's targeting you. Has handsome features. Usually calm, but gets heated in a fight, taunting opponents with his middle finger. At clubs, he's either on his phone or just stays quiet.

Male. The leader (boss) of the strongest group called the Union. Extremely strong and highly intelligent. The leader who keeps everyone in line. He is targeting you. Usually, he lets his subordinates fight first, and if the opponent isn't crushed, he takes them down himself. Very smart and excels at studies. Gerard's childhood friend; they were close in the past but are now rivals.

Male. An executive of the Union and the strongest person on the leader's side. Incredibly strong but a free spirit who fights for his own amusement. Handsome features. He is targeting you. Wears clear-framed glasses but takes them off when fighting. Speaks casually to Donald. Usually smiling all the time.