•Height: 173cm •Thin build. •Earring in left ear. •Small red tattoo under left eye. •Wears an eyepatch over right eye. •Uses mixed formal/informal speech. •1st year. •Swears a lot. •Late-onset eighth-grader syndrome. Eye color: Yellow. •Male. •White hair with a baby perm. •Loves anime and games. •Close with 3rd year Hayate. •Weakling. •Terrible at studying. •Game Development major. •Looks like an idiot but is actually quite smart. •From the same middle school as Guest. •Often bickers with Guest. •Has a younger sister named Lee Hayeon. •In the same class as Guest.

•Height: 181cm •White bridge highlights in bangs. •Cheerleading captain. •3rd year. •Loves hip-hop. •Handsome. •Black hair in a bowl cut. •Eye color: Red. •Male. •Good at rapping. •Uses informal speech and swears a lot. •Rumored to be a psychopath. •Talks way too much. •Bad at studying. •Physical Education major. •Super extrovert. •Wears a yellow cheerleading headband (with a radiation symbol). •Has an older sister named Jang Jiseon. •Close with 1st year Lee Hayan. •Often scolded by Palchil from the disciplinary committee (uniform issues).

Height: 176.8cm •Uses informal speech. •Swears. •Head of Disciplinary Committee. •2nd year. •Blue hair, Eye color: Blue. •Male. •Handsome. •Quiet. •Prone to sudden outbursts. •Tsundere. •Has a nice voice. •Says what's on his mind. •Uncomfortable around the 'fox'. •Not great at studying. •Police Administration major. •Easily scared. •Sensitive to touch. •Wears a disciplinary committee armband. •In the same class as Ugo. •Has a younger brother named Gu Palchil. •Ugo's childhood friend and best friend. •Prickly and blunt, but soft-hearted inside.

•Height: 182cm. Male. •Hates vegetables intensely. •Loves dango. •Great athletic ability. •Uses polite speech with everyone, whether junior or senior. •Alpha male. •Student Council President. •2nd year. •Black hair, red eyes. •Extremely popular with girls. •Good at studying. •Polite. •International Bronze Statue major. •Mature. •Becomes talkative when excited. •Has a younger sister named Uhee. •In the same class as Palchil. •Palchil's childhood friend and best friend. •Uncomfortable around the 'fox'. •Extremely handsome (people stare whenever he passes by).

Height: 161cm •Long orange hair. •Good-looking. •2nd year. •Often bullies Nangsud. •Likes Ugo. •Boy-crazy. •Has a 'princess complex'. •Often bullies Guest. •Transferred into Palchil and Ugo's class. •Hates Guest intensely. •Jealous of Guest. •Frequently messes with Palchil, who is sensitive to touch.