ㆍMale ㆍ17 years old ㆍClass 1 ㆍHe has a kind nature and loathes violence. He is so averse to it that he fears not only being hit but also hitting others. However, he isn't a total pushover; he possesses an inner strength that drives him to overcome bullying on his own. ㆍHe is the disciple chosen by Maria and views her as both a senior and a mentor. ㆍStreet fighting, Jiu-Jitsu ㆍHe is extremely weak, arguably the weakest in the class. ㆍBrown dandy cut with bright, clear eyes.

ㆍFemale ㆍ17 years old ㆍClass 1 ㆍLively and highly competitive. She is loyal and won't stand by if someone messes with her friends. Usually quite kind. ㆍShe is very close with Shim Ha-min and Ki Ba-ram. ㆍKyokushin Karate ㆍFairly strong. ㆍBlack hair tied in a high bun with no bangs or side hair left out. She has a cute, round face like a rice cake.

ㆍMale ㆍ17 years old ㆍClass 1 ㆍDue to his admiration for Maria, he looks out for Jiu Ji-tae (whom Maria brought in) but becomes very aggressive toward students who insult her. Usually kind. ㆍVery close with Kwon Tae-young and Ki Ba-ram. ㆍKickboxing ㆍThe strongest among the first-years. ㆍWhite hair in a leaf cut style with strong wavy texture on top. He is handsome enough to have fans.

ㆍFemale ㆍ17 years old ㆍClass 2 ㆍShe looks like a model student, but she's anything but. Wearing wireless headphones playing Capoeira beats, she looks more like a dancer from the slums than a fighter. ㆍExcellent academic performance. ㆍCapoeira ㆍSomewhat strong. ㆍLight yellow, modest mushroom cut with large aviator glasses.

ㆍFemale ㆍ18 years old ㆍ2nd Year, Class 1 ㆍCold and ruthless personality. She will use any means necessary to achieve her goals. She shows the side of a stern senior but can also be quite eccentric. ㆍShe has Jiu Ji-tae as her disciple. She is the strongest fighter in all of Nam-il High. ㆍJiu-Jitsu, Mixed Martial Arts (MMA) ㆍWhite hair in a hush cut, slightly tanned skin, and a sharp gaze.

ㆍFemale ㆍ17 years old ㆍClass 1 ㆍPart of the delinquent trio with Jang Chun-soo and Oh In-taek, but she shows kindness by helping Jiu Ji-tae. She's a delinquent in name only; there are no depictions of her bullying others. She's actually quite nice. ㆍShe is a masochist and a lesbian who has a crush on Maria. She is often seen chewing nicotine gum. ㆍJudo ㆍStrong, perhaps due to her masochistic nature. ㆍBlack hair in a spiky cut with a sharp appearance.

ㆍFemale ㆍ17 years old ㆍClass 1 ㆍActs like a model student befitting her role as class president. Diligent and has a fun side. ㆍTop-tier academic grades. ㆍWrestling ㆍStrong, though not quite at Shim Ha-min's level. ㆍYellow spiky hair based on a high ponytail (half-up) with vertically slit pupils and sharp eyes.

ㆍMale ㆍ17 years old ㆍClass 1 ㆍA typical delinquent. He looks down on the weak Jiu Ji-tae and plays pranks often. ㆍPart of the delinquent trio with Cha So-wol and Oh In-taek. ㆍMixed Martial Arts ㆍNot very strong because he smokes frequently and skips training often. ㆍBlack hair with a longish parted perm. He has a somewhat rough appearance.

ㆍMale ㆍ17 years old ㆍClass 1 ㆍPlayful and energetic personality. Often provides comic relief. ㆍHe knows where to draw the line. Kind-hearted. ㆍShows genuine concern for his friends. ㆍVery close with Shim Ha-min and Kwon Tae-young. Poor academic performance. ㆍTaekkyeon ㆍSomewhat strong. ㆍBlack hair in a comma-style part that reveals his forehead. He has a mischievous look.

ㆍMale ㆍ17 years old ㆍClass 1 ㆍA style that is all confidence and nothing else. ㆍPart of the delinquent trio with Cha So-wol and Jang Chun-soo. ㆍWeak because he frequently ditches training. ㆍAn ordinary-looking boy with a black pompadour cut.