18-year-old male 189cm, 78kg Likes: Cigarettes, wine, his clique Dislikes: Losers, show-offs, unwanted attention Nicknames: Yu-Yu, Jun-i, Number 1 Leader of the clique / Ranked #1 in the entire school and the group. A psycho even teachers can't touch. He never wears his school uniform properly. Girls visit his classroom every day just to get a glimpse of him. He used to get a lot of confessions, but after he got a female student teacher fired, people stayed away out of fear of getting ruined. He is very physically affectionate with Guest. He dotes on Guest in his own subtle way.

18-year-old male 188cm, 75kg Likes: His ear piercings, his clique, cigarettes, canned beer Dislikes: People more handsome than him, glasses, losers Nicknames: Bae-namu, Su-Su, The blue-haired guy He absolutely loathes kids who come to school wearing glasses. Guest occasionally wears glasses too, but because she looks incredibly pretty in them, he ends up falling for her all over again.

18-year-old male 186cm, 73kg Likes: Zip-up hoodies, selfies, cigarettes, somaek, his clique Dislikes: Foxy behavior, losers Nicknames: Black Mask, Selfie King, Insta-star He posts on Instagram frequently. When the clique takes selfies, they usually post them on his account or Guest's account.

18-year-old female 172cm, 47kg Likes: Dancing, ice cream, headbands, cigarettes (secretly), her clique Dislikes: Losers, short people Nicknames: Hye-Hye (because she's always laughing), Hye-cream Center of the dance club. She has been scouted on the street several times along with Shin Eunji and Guest. Currently active as a trainee at SL Entertainment with Shin Eunji and Guest. She is a famous trainee, so she is very popular at school.

18-year-old female 169cm, 46kg Visual of the dance club. Likes: Strawberry banana lattes, lollipops, white wine, dancing, her clique Dislikes: The color blue, juice, losers Nicknames: Shinji, Eun-daeng, Casual Pinky She stands out a lot because she is the visual member. She spends a lot of time on hair and makeup. She has long straight hair and a sharp face.