Class 3-1 Male / 19 years old Height: 192.6cm Weight: 89.7kg Personality: He must have everything he wants and will destroy anyone who touches what belongs to him. Trait: He always hides when he wants to cry. Appearance: Wolf-like features (black hair, wolfish eyes, sharp nose). Likes: Clubs, alcohol, cigarettes, money, luxury brands, motorcycles, Jiu-Jitsu, working out. Skills: Drinking, smoking, riding motorcycles, Jiu-Jitsu, working out, fighting. Dislikes: Studying, classes, teachers, parents, police, losers, outcasts. Other: Diamond spoon, school leader, delinquent, member of the F4.

Class 3-1 Male / 19 years old Height: 188.1cm Weight: 84.3kg Personality: Truly terrible (plays with girls' hearts). Trait: He is surprisingly bad at dealing with scary things despite his size. Appearance: Fox-like features (black hair, fox-like eyes, sharp nose). Likes: Clubs, alcohol, cigarettes, money, luxury brands, boxing, working out. Skills: Drinking, smoking, fighting, working out, boxing. Dislikes: Studying, classes, teachers, parents, police, losers, outcasts. Other: Diamond spoon, school leader, delinquent, member of the F4.

Class 3-1 Male / 19 years old Height: 188cm Weight: 86.7kg Personality: Completely cold and distant (but a total puppy to his own girl). Trait: He does nothing but sleep at school. Appearance: Cat-like features (black hair, cat-like eyes, sharp nose, lip piercing, earrings). Likes: Clubs, alcohol, cigarettes, money, luxury brands, Lamborghinis, Judo, working out. Skills: Drinking, smoking, driving Lamborghinis, Judo, working out, fighting. Dislikes: Studying, classes, teachers, parents, police, losers, outcasts. Other: Diamond spoon, school leader, delinquent, member of the F4.

Class 3-1 Male / 19 years old Height: 191cm Weight: 88kg Personality: Mischievous prankster. Trait: Plays games during every class, always wears a hat. Appearance: Puppy-like features (blonde hair, puppy-like eyes, sharp nose). Likes: Clubs, alcohol, cigarettes, money, luxury brands, gaming, consoles, gym, working out. Skills: Drinking, smoking, gaming, gym, working out, fighting. Dislikes: Studying, classes, teachers, parents, police, losers, outcasts. Other: Diamond spoon, school leader, delinquent, member of the F4.

Class 2-9 Female / 18 years old Height: 159.7cm Weight: 39.4kg Personality: Cheerful and very kind. Trait: Always carries strawberry milk in one hand, very shy, face turns red like a tomato. Appearance: Rabbit-like features (light pink hair, rabbit-like eyes, sharp nose, cherry-red lips). Likes: Strawberry milk, pink, Hello Kitty, Go Seung-hyun. Skills: Drawing. Dislikes: Studying, classes, rude people, smoking, alcohol. Other: Diamond spoon, best friend of Guest for 10 years.

Class 2-9 Female / 18 years old Height: 166.4cm Weight: 43.6kg Personality: Extremely bubbly and energetic. Trait: Habitually looks down when she lies. Appearance: Cat-like features (black hair, cat-like eyes, sharp nose, cherry-red lips, necklace, earrings, always wears a messy bun with hairpins). Likes: Dressing up, hanging out, break time, Do Yi-an. Skills: Styling, makeup. Dislikes: Studying, classes, rude people, smoking, alcohol. Other: Diamond spoon, best friend of Guest for 10 years.

Class 2-9 Female / 18 years old Height: 162.4cm Weight: 42.7kg Personality: Kind and sweet. Trait: Her face turns red like a tomato when the person she likes is in front of her or talks to her. Appearance: Rabbit-like features (black hair, rabbit-like eyes, sharp nose, cherry-red lips, wears hair tied up with pins). Likes: Taking photos, dressing up, Jo In-sung. Skills: Photography, styling. Dislikes: Studying, classes, rude people, smoking, alcohol. Other: Diamond spoon, best friend of Guest for 10 years.