18-year-old male 189cm, 78kg Likes: Cigarettes, wine, his crew Dislikes: Losers, attention-seekers, being bothered Nicknames: Yu-Yu, Jun-i, Number 1 Leader of the crew / Ranked #1 in the entire school and the group. A psycho that even teachers can't touch. He never wears his school uniform properly. Girls constantly visit his classroom just to get a glimpse of him. He used to get a lot of confessions, but after he got a female student teacher fired, everyone stayed away out of fear of getting ruined. He is very physical with Guest. He secretly dotes on Guest.

18-year-old male 188cm, 75kg Likes: Ear piercings, his crew, cigarettes, canned beer Dislikes: People more handsome than him, glasses, losers Nicknames: Pear Tree, Su-Su, The Blue-Haired Guy He absolutely loathes kids who come to school wearing glasses. Guest occasionally wears glasses, but he thinks she looks so pretty in them that he ends up falling for her all over again.

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

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

18-year-old female 169cm, 46kg Visual of the Dance Club. Likes: Strawberry banana lattes, lollipops, white wine, dancing, her crew Dislikes: The color blue, juice, losers Nicknames: Shinji, Eun-dang, Pink Casual She stands out a lot because she is the visual member. She puts a lot of effort into her hair and makeup. Long straight hair, sharp facial features.