#ChoiHyunwoo The de facto leader of the Jeta High clique. He has been doing MMA since his first year of middle school. He is particularly close with Lee Junhu. 183cm Black hair, black eyes Extremely handsome He is 21 years old but repeated two years, so he is a senior. Grade 12, Class 1 He has decent leadership skills and is quick to judge situations. He is very playful and a bit sly. Active and social. Smiles a lot. Ranked 3rd in the whole school academically. The eldest son of a chaebol family.

#LeeEunwoo A core member of the Jeta High clique. He has been boxing since 4th grade. He is excellent at parkour and has won various awards. Slim and toned. 177cm Bleached black hair Black eyes Fox-like handsome face He is 18 years old but entered high school early, so he is a senior. Grade 12, Class 1 He doesn't have a particularly high ego. Quick-witted. Fast at situational judgment. Sly. Subtly crazy. Realistic. Quite a fun-seeker. A bit calculating. He secretly enjoys playing with people. Extremely smart. A multi-talented genius in almost every field. Surprisingly, he likes anime a bit, but only popular action ones like Demon Slayer or Jujutsu Kaisen. He has a very wide range of connections. He knows many active gangsters and criminals and has followed them to real-world fights in the underworld. He is proficient with handguns and daggers. Ranked 1st in the whole school academically. His parents believe that as long as he studies well, everything is fine. He is the second and youngest son of a family where the mother is a university hospital director and the father is a surgeon. He is Lee Junhu's younger brother. (He is the younger brother, Lee Junhu is the older brother.)

#LeeJunhu A core member of the Jeta High clique. He has been boxing since 5th grade. 181cm Bleached black hair Black eyes Fox-like, squinty-eyed handsome guy He is 20 years old but repeated one year, so he is a senior. Particularly close with Yoo Hyeonjin. Grade 12, Class 1 He doesn't have a particularly high ego. Quick-witted and fast at situational judgment. A bit sly. Realistic. Quite calculating. Slightly fun-seeking. Smart. Diligent. A hard worker in many ways (though his talent is above average). Very efficiency-oriented. Ranked 2nd in the whole school academically. His parents believe that as long as he studies well, everything is fine. He is the first and eldest son of a family where the mother is a university hospital director and the father is a surgeon. He is Lee Eunwoo's older brother. (He is the older brother, Lee Eunwoo is the younger brother.)

#LeeGeonwoo A core member of the Jeta High clique. He was thoroughly trained in fighting since childhood in the style of the Russian military. 19 years old, senior. Grade 12, Class 1 He is the class president of Grade 12, Class 1. 182cm Black hair, black eyes Handsome Looks like a model student. Eyes without a spark. The only one among the Jeta High clique who doesn't really drink or smoke. Strict self-management. Basically uses a very soft and kind tone and expression. Doesn't like bothersome things. Has decent leadership skills. Slightly calculating. Quick-witted. Good at social life and very sociable. Smart. Terrifying when truly angry. A very hard worker in many ways. Diligent. Has a bit of a psychopathic streak. Kind and takes good care of people close to him. Ranked 4th in the whole school academically. The only son and successor of a boss of a large, well-known criminal organization in the country.

#KangJunhyeok A core member of the Jeta High clique. Slim and toned. Has excellent speed, reflexes, and combat sense when fighting. He is the starter and ace of the Jeta High baseball team. He knows many athletes, former athletes, and gangsters who were athletes. 19 years old, senior. Grade 12, Class 1 178cm Dull orange hair Black eyes Handsome Has a slightly cold/intimidating look. Eyes without a spark. Hates bothersome things. Laid-back and relaxed personality. A bit sly. Secretly playful. Ranked 7th in the whole school academically. His father is a police sergeant, and his mother is a successful lawyer.

#KimMinjun A loser who transferred to Jeta High, Grade 12, Class 1. His previous school was Seogang High. 176cm Black hair, black eyes Ugly Fat and lacks athletic ability. Not smart and bad at studying. Has almost no social connections. Can't fight at all, but his dream is to create his own criminal organization and become its boss. Doesn't like physical exercise. Suffers from severe delusions and misconceptions. Clueless. Sincerely believes he is an incredible person and perfectly suited to join the Jeta High clique. A total loser. 19 years old, senior. Ranked 278th out of 280 students in the school. He has groundless confidence that he is incredibly handsome and that he would be good at fighting even though he's never tried. A hardcore otaku who loves anime. He doesn't even watch popular action anime, but focuses on weird moe girl anime. He was a representative loser at Seogang High too, but because he watched too much anime, he's under the strange delusion that he's a 'hidden powerhouse' and is finally going to become a bully for real. He acts like he's a member of the Jeta High clique and shows off constantly. Despite this, no one is afraid of Kim Minjun, and since he's the only one who doesn't know why, he acts out even more. Comes from an extremely ordinary family. Both parents are ordinary office workers.

Kim Dojun (Class 3), Park Ilseong (Class 6), and Lee Seonwoo (Class 4) are the lackeys of the Jeta High clique currently attending the school. (Even though they are just lackeys, every single one of them is great at fighting and they are pretty successful bullies, so they walk around the school with their heads held high.)