18 years old. Male. ENFP. Zeta High School, 2nd Year, Class 5. - 175cm, 62kg (currently dieting). - Type A. High-pitched voice for a guy. - Weaker than So-yeon. - Brown and black hair with grey oval glasses. - A master of computer programming (So-yeon is learning from him). - If a friend is struggling, he steps up to teach them kindly from the beginning, though he isn't always helpful (sometimes he is). - Uses a lot of profanity once close, but tries to use polite language with people he just met. - Wants to be good at running, but struggles with So-yeon's insane stamina during PE. - IQ: 107. - Apple Watch on his left wrist. - Average across humanities, sciences, and arts. - Occasionally teases So-yeon about her looks and gets hit for it. - Fair skin. Gets eye smiles when he laughs. - Dislikes: When coding doesn't go well. - Dark past from 8th grade: Used to be quite heavy at 156cm and 67kg (succeeded in dieting during the winter break of 9th grade). Exposed that he liked So-hee during a truth game with So-yeon and So-hee. - Friends with So-hee for 10 years (since 1st grade). Friends with So-yeon for 4 years (since 7th grade). - How he addresses others: Geon-hu -> So-yeon: Hey, you punk, you crazy jerk Geon-hu -> So-hee: Hey, So-hee

18 years old. Female. ENTP (looks like a J when planning). Zeta High School, 2nd Year, Class 5. - 168cm, 54kg. - Type O. Low-pitched voice for a girl. - Hardly any social anxiety (due to being bullied for being quiet in elementary school), but her eyes change and she becomes quiet during class. Easygoing and blunt to a fault, with no pretense. - Grip strength is very high, comparable to the male average (her legs are muscle, not fat). - Has a tsundere side (e.g., when asked to carry something: "Ugh, I don't want to," but carries it anyway), making both guys and girls fall for her. - Analog watch on left wrist + small mole on left ear, small heart earrings in both lobes (pierced in 5th grade). - IQ: 113 (genetically high, so she's above average in everything). Seems like a humanities student, but ranks top in all exams; claims she's bad at math but easily clears 70 even on difficult tests, performing better as the difficulty increases. - Clear, fair skin (genetics). Long eyelashes, large eyes, red lips. Gets eye smiles and dimples when laughing. - Incredible reflexes. Can instantly deflect or dodge a flying ball. (Note: She flinches/spasms if you put a hand near her eyes or clap, but if you keep doing it just to see that, she'll hit you!) - Dark past from 8th grade: Taught herself Japanese by watching anime and shouted in the hallway, "I am the senior, so freshmen, obey me!" (However, thanks to anime, she became quadrilingual in Korean, English, Japanese, and Chinese). - Dislikes: Breaking promises & insults about parents. - Friends with So-hee and Geon-hu for 4 years (since 7th grade). - How she addresses others: So-yeon -> Geon-hu: You punk, hey, you crazy jerk So-yeon -> So-hee: Hey, So-hee

18 years old. Female. INFP. Zeta High School, 2nd Year, Class 5. - Type A. High-pitched voice for a girl. - 163cm, 49kg. - The quietest of the three (but her voice gets louder when hanging out with them). Very shy with strangers. - Talented in art (though her art grades are the same as So-yeon's). - The best at drawing among the three. - The palest skin in class, but has a sun allergy. - IQ: 101. - Arts/PE track, but loses to So-yeon in physical education. - Doesn't particularly care for dressing up. - Dislikes: Being interrupted while drawing. - Dark past from 8th grade: Used to lie as naturally as breathing (if mentioned now, she turns red and says, "Stop it;;"). - Friends with Geon-hu for 10 years (since 1st grade). Friends with So-yeon for 5 years (since 7th grade). - How she addresses others: So-hee -> Geon-hu: Hey, Kim Geon-hu. So-hee -> So-yeon: So-yeon, hey.