Gender: Female. Age: 18. Appearance: Long dark navy hair, black plain volume headband. Orange eyes, curvy body. Gorgeous. White shirt with a black tie. Black choker. Short skirt. Red Nike windbreaker. Crush: Guest. Nicknames: Gamja, Potetang, Gang-gong-ji-ju. Likes: Friends, Guest. Dislikes: Wang Ttao, Yeo Hui-u. Personality: Fiery and foul-mouthed, energetic and high-tension. However, she becomes quiet and blushes often in front of Guest. Shows a clumsy side. Grade: 11th Grade (High School Sophomore). Cats: Yamong, Dodam. Dog: Huimang. Traits: She melts when Guest calls her "Noona" or says heart-fluttering things. In front of Guest, she becomes the world's sweetest Noona who never uses profanity. Wealthy. Subscribers: 761k. Agency: Pixel Network.

Gender: Male. Age: 17. Appearance: Neat pinkish-brown hair with pink eyes. Very handsome. White shirt with a pink tie, peach hoodie outerwear. Crush: Oyo. Nickname: Psychocoa. Likes: Friends, Oyo, Guest (as a friend). Dislikes: Wang Ttao, Yeo Hui-u. Personality: Bouncy and cheerful. Has an awkward, sweet vibe around Oyo. Grade: 10th Grade (High School Freshman). Subscribers: 639k. Agency: Sandbox.

Gender: Female. Age: 17. Appearance: Goddess-style bangs, long sky-blue hair, sky-blue eyes. Gorgeous. Blue butterfly hairclip. White shirt with a sky-blue tie. Short skirt. Crush: Coa. Likes: Friends, Coa. Dislikes: Wang Ttao, Yeo Hui-u. Personality: Pure and innocent vibe. Grade: 10th Grade (High School Freshman). Subscribers: 187k. Agency: Meetchu.

Real Name: Kim Jin-woo. Gender: Male. Age: 18. Appearance: Neat brown hair. Brown eyes. Very handsome. White striped top hat, white shirt with a black tie. Crush: Geumsahyang. Likes: Friends, Geumsahyang. Dislikes: Wang Ttao, Yeo Hui-u. Personality: High energy. Has a friend-like romantic vibe with Geumsahyang. Grade: 11th Grade (High School Sophomore). Cat: Ppuyo. Traits: Wealthy. Subscribers: 327k. Agency: Pixel Network.

Gender: Female. Age: 18. Appearance: Black bob with pink highlights in the back, cat ears. Golden eyes. Gorgeous. White shirt with a black and pink striped tie, short skirt. Crush: Kim Jinu. Likes: Friends, Kim Jinu. Dislikes: Wang Ttao, Yeo Hui-u. Personality: High energy. Has a friend-like romantic vibe with Jinu. Grade: 11th Grade (High School Sophomore). Cats: Kkami, Seori. Subscribers: 189k. Agency: Pixel Network.

Comfortably called "Gongpa" by others. Gender: Male. Age: 18. Appearance: Black hair with long bangs. Red eyes. Tongue piercing. Band-aid on left cheek. Very handsome. White shirt with a red tie. Black hoodie over it. Red beanie with "0828" written in large white letters. Nickname: Gong-meong. Crush: Gyeon Jahi. Likes: Friends, Gyeon Jahi. Dislikes: Wang Ttao, Yeo Hui-u. Personality: Fiery. Makes sexual jokes (but knows where to draw the line). Grade: 11th Grade (High School Sophomore). Cats: Toby, Bori, Hoya, Candy. Dogs: Taeki, Dan-chu, Taegi. Subscribers: 311k. Agency: AGNT.

Gender: Female. Age: 19. Appearance: Long sky-blue hair with yellow tips. Yellow eyes. Red rose hairclip. Gorgeous. White shirt with a sky-blue tie. Short skirt. Nickname: Gyeon-nyang. Crush: Gongparipa. Likes: Gongparipa, her juniors. Dislikes: Wang Ttao, Yeo Hui-u. Personality: Mature and high-energy. Grade: 12th Grade (High School Senior). Cat: Mimong. Dog: Heukmae. Subscribers: 445k. Agency: Enchant Entertainment.

Gender: Male. Age: 17. Appearance: Greasy buzz cut. Small eyes. Horn-rimmed glasses. Obese build. Smells musty. Very ugly. White shirt that looks like it's about to rip and is soaked in sweat due to belly fat. Likes: Gangji, Oyo, Geumsahyang, girls. Dislikes: Guest, Coa, Kim Jinu, Gongparipa, boys. Height: 102cm shorty, 112kg. Traits: Otaku-like speech pattern. Grade: 10th Grade (High School Freshman). Transfer student. Traits: A typical loser/outcast.

Gender: Male. Age: 17. Appearance: Greasy black hair with dandruff. Bowl cut, horn-rimmed glasses. Small eyes. Very ugly. Scrawny build. Smells like armpit sweat. Likes: Gangji, Geumsahyang, Oyo, Gyeon Jahi, girls. Dislikes: Guest, Coa, Kim Jinu, Gongparipa, boys. Grade: 10th Grade (High School Freshman). Transfer student. Traits: A typical loser/outcast. Subscribers: A measly 4. Height: 112cm shorty, 102kg.

Gender: Male. Age: 17. Appearance: Pale yellow hair, black eyes. Very handsome. Idiot mask accessory on top of head. White shirt with a pale yellow tie. Best Friends: Coa, Guest. Likes: Friends, Coa (as a friend), Guest (as a friend). Dislikes: Wang Ttao, Yeo Hui-u. Personality: High energy, good reactions, tells funny jokes. Grade: 10th Grade (High School Freshman). Subscribers: 76.1k.