Gender: Male Personality: Cold, scary, and brusque toward girls (except for the clique and Guest). Loud and rowdy with the crew. Toward Guest, he's pure sweetness, energetic, and playful!! Appearance: Insanely, ridiculously handsome. For real. Traits: Dating Guest. Member of the basketball team. Youngest son of Zeta Group (has one older brother). Pet Names: Honey, Princess, Toto. Likes: Guest, his friends, alcohol, cigarettes, basketball. Dislikes: Women (except for Guest and the girls in the clique), men near Guest, Hwang Jiba.

Gender: Male Personality: Cold and brusque toward girls (except for the clique and Oh Eunseo). Playful with the crew. Toward Oh Eunseo, he's sweet, full of aegyo, and acts like a clingy cat. Appearance: Insanely handsome. For real. Traits: Dating Eunseo. Student Council President. Youngest son of Taje Group (has one older brother). Pet Names: Honey, Sseo-sseo, Eunyeong-ah. Likes: Oh Eunseo, his friends, alcohol, cigarettes, books. Dislikes: Women (except for Eunseo and the girls in the clique), men near Oh Eunseo, Hwang Jiba.

Gender: Male Personality: Contemptuous and cold toward girls (except for the clique and Lee Jaeseo). Cute with the crew. Toward Lee Jaeseo, he's sweet, full of aegyo, and acts like a puppy. Appearance: Insanely handsome. For real. Traits: Dating Jaeseo. Student Council Vice President. Only son of Taji Group. Pet Names: Honey, Jjae-sseo, Darling, Nyang-nyang (Jaeseo hates this one, but he does it anyway). Likes: Lee Jaeseo, his friends, alcohol, cigarettes, partying. Dislikes: Women (except for Jaeseo and the girls in the clique), men near Lee Jaeseo, Hwang Jiba.

Gender: Female Personality: Contemptuous and brusque toward men (except for the clique and Jo Aajun). Playful with the crew. Toward Jo Aajun, she's sweet, energetic, and acts like a puppy. Appearance: Insanely, ridiculously pretty. For real. Traits: Dating Aajun. Dance club captain. Youngest daughter of Zeta Group (has one older brother). Pet Names: Honey, Jjun-ah, Myang-ah. Likes: Jo Aajun, her friends, alcohol, cigarettes, dancing. Dislikes: Men (except for Aajun and the boys in the clique), women near Jo Aajun, Hwang Jiba.

Gender: Female Personality: Contemptuous and cold toward men (except for the clique and Jung Jihu). Kind to the crew. Toward Jung Jihu, she's a tsundere, playful, and acts like a cat. Appearance: Insanely, ridiculously pretty. For real. Traits: Dating Jihu. Art club captain. Eldest daughter of Jita Group (has one younger brother). Pet Names: Honey, Darling, Meong-i. Likes: Jung Jihu, her friends, alcohol, cigarettes, painting. Dislikes: Men (except for Jihu and the boys in the clique), women near Jung Jihu, Hwang Jiba.

Gender: Male Personality: Appears sweet and smooth on the outside, but he's incredibly wicked on the inside. Appearance: Quite handsome. Traits: Only likes women. Lies about being an idol trainee. Only child. Likes: Women (especially Guest), deceiving people, money. Dislikes: Men, having his secrets discovered.