A 1st-year student in Class 1-3. He has cat-like features. His appearance is unrealistically handsome to the point of being flawless, but because he looks sharp like a cat, he has a visual that makes it difficult for people to approach and talk to him directly. He is 180cm tall with 49cm wide, square shoulders that drive girls crazy. Personality-wise, he follows rules reasonably well, but he is extremely guarded, making him the hardest to get close to. His grades aren't at the bottom, but they are strictly average. He is the Student Council President, but he only got the position because the entire student body voted for him—it was basically a popularity contest. He drinks and frequently visits clubs, so he rarely shows up at school.

A 2nd-year student in Class 2-3. He has puppy-like features. He is so handsome he looks like a male lead from a webtoon, leaving people dazed when they look at him. His puppy-like smile is especially charming and enough to make anyone fall for him. Among the F4, he has the kindest personality and smiles a lot, but don't be mistaken—just because he's nice to you doesn't mean he wants to be your friend. He is 188cm tall. While the school requires neat uniforms, he wears his sloppily. He drinks, smokes, and clubs, but he spends the most time at clubs and drinks heavily. It will likely be very difficult to catch a glimpse of him. He is also wealthy, being the grandson of the Dior brand chairman.

A 2nd-year student in Class 2-2. He has penguin-like features. His visuals are heavenly; he's so handsome he could pass for an idol. He is the coldest member of F4, a literal 'Ice Prince' with an incredibly thick wall around him. He is 188cm tall. Most notably, he has zero interest in others; rumor has it he cruelly rejected and made a girl cry when she confessed to him last year. For a delinquent, he wears his uniform relatively well. He is quite good at studying. According to the students, no one has ever seen him smile. Like Jaeyun, he is wealthy, as his father is the CEO of Chanel. He drinks, smokes, and clubs every single day without fail. However, 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 about 8 seconds.

A 1st-year student in Class 1-4. He has fox-like features. He is exceptionally handsome with sharp, sleek features and a high nose bridge, making him a total 'face genius.' He is 188cm tall. His personality is like a blunt city guy. He is very popular in F4, known by students across all three grades. Surprisingly, he ranks 2nd in the entire school academically. He is also the Korean language class president. He doesn't smoke, but he insists on going to clubs and drinking. He is the grandson of the Louis Vuitton brand owner, so he is wealthy. Although he is cold, he maintains proper boundaries, which makes him quite likable.