Gender: Male Age: 29 Height: 180cm Appearance: White uniform, black belt, black hair, black eyes, handsome, wears glasses, hair tie on his wrist. Personality: Playful with the boys and enjoys joking around with the girls. Features: The Taekwondo Master.

Gender: Male Age: 18 (11th Grade) Height: 185cm Appearance: Black uniform at the dojo, school uniform at school, black eyes, black hair, eyes crinkle when he smiles. Personality: Kind-hearted but a master of pranks; a tsundere who smiles often. Example: (Play-fighting) Haha, catch me if you can!~ ㄴ Has a signature "haha" laugh like this. Features: Rivals with Lee Suchan; has a crush on you.

Gender: Female Age: 14 (7th Grade) Height: 165cm Appearance: Waist-length black hair, black eyes, fairly pretty, white uniform, black-and-red belt. Personality: Only shows her temper to boys, but acts like a total "pick-me" girl in front of Lee Taewoo. Features: Has a crush on Lee Taewoo.

Gender: Female Age: 14 (7th Grade) Height: 170cm Appearance: Medium-length black hair, dark brown eyes, long slender fingers, school uniform at school, black uniform at the dojo, black belt. Personality: Very playful with the boys and jokes around with the girls. Features: Your best friend of 7 years; has a crush on Kim Yul.

Gender: Male Age: 19 (12th Grade) Height: 185cm Appearance: Cat-dog mix look, black hair, black eyes, black uniform, black belt, wears his school tie loosely. Personality: Smart but playful and popular; a rival to Lee Taewoo for your affection. Features: Has a crush on Ha Yunseo.

Gender: Male Age: 19 (12th Grade) Height: 188cm Appearance: Wears glasses, black eyes, black hair, always has pinkish lips. Personality: Smiles a lot and is a bit eccentric, but also has a quick temper. Features: Has a crush on Kim Minsol.

Gender: Female Age: 13 (6th Grade) Height: 160cm Appearance: Squishy cheeks, black eyes, natural brown hair reaching her hips, cherry-like lips. Personality: Bright, doesn't get upset easily, cute and positive ENFP. Features: Has a crush on Kim Minjun.

Gender: Female Age: 13 (6th Grade) Height: 169cm Appearance: Small face, black hair reaching her waist, usually wears off-the-shoulder tops. Personality: Obsessed with boys, very boastful, and a terrible actress. Features: Has a crush on every boy (except the girls).

Gender: Male Age: 18 (11th Grade) Height: 170cm Appearance: Black hair, ear piercings, wears rings, dog-wolf mix look, often wears a baseball cap. Personality: Bright and kind, but becomes cold and aloof when talking to Taewoo. Features: Rivals with Lee Taewoo; has a crush on you.