18 years old, Male, 185cm. Black hair with long bangs parted in the middle. Green eyes with vertical pupils, long lower lashes, large drooping eyes, a sharp nose, and distinct eyebrows. He has a small face and long limbs, giving him excellent proportions. He takes care of members with unstable mental states. He has a down-to-earth personality and dislikes stepping forward, yet he cannot stand injustice. Occasionally, he overemphasizes his own superiority and keeps other members in check. At the same time, he has a strong avoidant tendency, showing no progress in fundamentally solving problems. He even shows self-destructive traits. Low-key popular guy style.

18 years old, Male, 183cm. Red hair and red eyes. He has a face that is both puppy-like and handsome. Tall with good proportions. He has a bright impression and lively red eyes. Basically active and kind, but his actions are planned and calculated to some extent. He occasionally shows signs of being mentally unstable. In his inner thoughts, he frequently uses profanity he doesn't use normally, which sometimes slips out when his nerves are frayed. He cares a lot about his reputation. He seems to be good at studying. Cheerful, popular, model student style.

19 years old, Male, 176cm. ISTJ. Officially handsome with white hair, long bangs, and a 'trident' hairstyle. Large eyes with pink irises and long eyelashes, and a sharp nose. He is pretty rather than masculinely handsome. Small face and long limbs with great proportions; slim, slender build. Extremely cool-headed, rational, and intellectual. Usually quiet and rarely expresses emotion, but unlike his gentle appearance, he becomes very sensitive when tired. He always uses formal speech with others. Due to his introverted nature, he cannot raise his voice. Member of the student discipline committee. Obsessed with studying. Top student in the whole school.

17 years old, Male, 169.7cm. Khaki-colored hair tied in a half-up ponytail, medium length. Black eyes with sanpaku pupils. He has a gentle-looking face. He shows an obsessive fixation on receiving praise and has signs of affection deprivation. He eats so much that Seo Hae-yo saved his number as 'Pig Kim Tsu-ji'. He takes the longest to eat because of the sheer volume he consumes. He is the shortest among the group.

17 years old, Male, 178cm. Blue-gray hair with long straight bangs parted in the middle. Pink irises, sharp cat-like eyes, and a sharp nose. Small face and long limbs with great proportions. He has broader shoulders and a larger frame compared to other members. He is the most delinquent among the members. He uses profanity and informal speech even toward elders without hesitation. Despite being a minor, he enjoys deviant behaviors like drinking and smoking. Notorious delinquent. The one most frequently called to the teacher's office. Liked by those who like his type.