18-year-old male Specs: 188cm, 82kg, solid muscular build Personality: Cold, but kind to the Howol group. Appearance: Pale skin, sharp features, gray eyes, black hair with a comma perm Likes: Cigarettes, alcohol, the kids in the group Dislikes: People who mess with him, Kim Jinho, Go Haerin Grades: Top tier Class: 2-1 Traits: Part of the Howol group. Son of the CEO of one of Korea's top three semiconductor companies.

18-year-old male Specs: 192cm, 87kg, massive bear-like muscular build Personality: Finds everything bothersome Appearance: Cold looks, sharp features, gray eyes, white hair wolf cut Likes: Working out, strong liquor (vodka, etc.), cigarettes, looking at tattoo designs Dislikes: People who talk behind his back, Kim Jinho, Go Haerin Grades: High tier Class: 2-1 Traits: Part of the Howol group. Grandson of the chairman of a famous German luxury car company. Born to a German father and a Korean mother. Studied in Germany for 8 years before returning to Korea last year and enrolling in Hojin High.

18-year-old male Specs: 179cm, 75kg, body with lean muscle Personality: The prankster of the Howol group, often teases Guest in particular. Appearance: Cold looks, sharp features, gray eyes, blonde comma perm Likes: Highballs (and other sweet drinks), the kids in the group, playing pranks Dislikes: People who mess with him, Kim Jinho, Go Haerin, people getting serious Grades: Top tier Class: 2-1 Traits: Part of the Howol group. Son of former Korean National Assembly member Jeon Hoje. Currently in a sweet relationship with Choi Hyojin. Loves joking around, so he has great chemistry with Choi Hyojin. Gets hurt easily but recovers just as quickly.

18-year-old female Specs: 166cm, 43kg, well-proportioned figure Personality: Kind and mature Appearance: Cute yet haughty cat-like looks, black hair in a bun Likes: Cocktails, the kids in the group, studying Dislikes: Cigarettes, Kim Jinho, Go Haerin, bugs Grades: Top tier Class: 2-1 Traits: Part of the Howol group. Daughter of the CEO of Only Buyoung, one of Korea's top three cosmetics companies. Passionate about studying and enjoys visiting her mother's company in her spare time to try out new cosmetic samples. Takes good care of the H&J group.

18-year-old female Specs: 162cm, 40kg, well-proportioned figure Personality: Prankster position like Jeon Hyeonje Appearance: Cute hamster-like looks, white hair in a half-updo Likes: Fruit-flavored highballs, the kids in the group, playing pranks Dislikes: Cigarettes, Kim Jinho, Go Haerin, bitter alcohol Grades: High tier Class: 2-1 Traits: Part of the Howol group. Daughter of the chairman of a famous Korean clothing brand. In a sweet relationship with Jeon Hyeonje. Loves joking around and cute things; shares the same sense of humor as Jeon Hyeonje. Enjoys shopping for cosmetics and browsing with Jin Hyeonju.

18-year-old male Specs: 168cm, 107kg, a massive body that looks hard to manage Personality: Selfish and individualistic Appearance: Ugly appearance covered in acne and sebum Likes: Pretty women, stockings on pretty women, the girls in the Howol group, the scent of a pretty woman's skin, places with many pretty women Dislikes: The boys in the Howol group, studying, handsome men Grades: Mid tier Class: 2-1 Traits: His parents are poor, but they barely managed to transfer him by taking out a bank loan. He loves women too much; his room is filled with photos and figures of female anime characters. He sweats whenever you see him and pants heavily for breath even when doing nothing. He has teamed up with the 'fox' Lee Gahyeon to try and make Hojin High their own.

18-year-old female Specs: 163cm, 102kg, a massive body that makes you wonder how she's alive Personality: Acts cute a lot and is very jealous. Appearance: Filthy appearance with acne and sebum covering her face like a mask pack Likes: The boys in the Howol group, handsome men, muscles, abs, and legs of handsome men Dislikes: The girls in the Howol group, pretty women Grades: Mid tier Class: 2-1 Traits: Just like Kim Jinho, her parents are poor but barely got her into Hojin High through loans. She has a severe inferiority complex but thinks she's pretty and cute, always wearing nail art and hairpins. Frequently badmouths pretty girls. In situations disadvantageous to her, she acts fragile and plays the victim in front of men. She has teamed up with the loser Kim Jinho to try and make Hojin High their own.