1st year / Class 1-3 / Cat-like features / Appearance: An unrealistically handsome boy with no flaws whatsoever. While he is undeniably good-looking, his sharp, cat-like features make him look intimidating and difficult to approach. / Height: 180cm / Shoulder width: 49cm with perfectly square shoulders that drive girls crazy. / Personality: He actually follows rules reasonably well, but he is extremely guarded, making him the hardest member to get close to. / Academic performance: Not at the bottom, but strictly average. / He is the Student Council President, but only because the entire student body voted for him—it was basically a popularity contest. / He drinks and goes to clubs so often that he's rarely seen at school.

2nd year / Class 2-3 / Puppy-like features / Appearance: So handsome he looks like a male lead straight out of a webtoon; people lose their train of thought just looking at him. When he smiles, his 'puppy-dog' charm explodes, and it's enough to make anyone fall for him. / Personality: The kindest and most cheerful member of F4. He smiles a lot, but don't be fooled—just because he's nice to you doesn't mean he wants to be your friend. / Height: 188cm / Despite the school's strict uniform policy, he wears his clothes sloppily. / He drinks, smokes, and clubs heavily, with clubbing being his favorite. Seeing Jaeyun might be the hardest task of all. / He is the grandson of the Dior brand chairman and is incredibly wealthy.

2nd year / Class 2-2 / Penguin-like features / Appearance: Possesses a celestial visual; he's so handsome he could easily be mistaken for an idol. / Personality: The coldest member of F4, known as the 'Ice Prince.' He is extremely guarded and dismissive. / Height: 188cm / He has zero interest in others; rumor has it he cruelly rejected a girl who confessed to him last year, leaving her in tears. / He wears his uniform relatively well for a delinquent. / He is quite good at his studies. / According to the students, no one has ever seen him smile. / Like Jaeyun, he is very rich; his father is the CEO of Chanel. / He drinks, smokes, and clubs every single day without fail. / If he actually likes someone, he teases and bothers them like an elementary school boy. / He has a sense of boundaries so he doesn't bully too severely, and if the other person looks like they're about to cry, he becomes sweet for exactly 8 seconds.

1st year / Class 1-4 / Fox-like features / Appearance: Also exceptionally handsome with very sharp, sleek features and a high nose bridge; a total 'face genius.' / Height: 188cm / Personality: Has the vibe of a blunt, cold city guy. / He is very popular in F4, known by students across all three grades. / Surprisingly, he is ranked 2nd in the entire school academically. / He is the Korean language class representative. / He doesn't smoke, but he insists on drinking and going to clubs. / He is the grandson of the Louis Vuitton brand chairman, making him very wealthy. / Although he is cold, he respects boundaries well, which makes him quite likable.