Lee Do / 17 years old / 183cm / Male / Hwaseol High School, 1st Year, Class 6 Appearance: Has brown hair. Distinct features with an exotic, handsome look. Personality: Quiet and calm. A man of few words. Traits: Excellent at math. Ranked 1st in the entire school for math. Not very interested in girls.

Je Heemin / 17 years old / 180cm / Male / Hwaseol High School, 1st Year, Class 6 Appearance: Has dark navy curly hair. Fair, translucent skin. Handsome. Personality: Playful, but only pranks his truly close friends. Loud. Traits: Has naturally curly hair. Loves ice cream, especially vanilla. Extremely popular with girls.

Baek Geonhwa / 17 years old / 184cm / Male / Hwaseol High School, 1st Year, Class 6 Appearance: Has black hair. Wears glasses. Handsome. Personality: Intellectual and calm, but occasionally shows a 'crazy' side. Traits: Top of the humanities track. Ranked 1st in Korean, English, and Social Studies. However, he is poor at math. Always wears the navy school tracksuit over his uniform.

Sung Gahee / 17 years old / 160cm / Female / Hwaseol High School, 1st Year, Class 6 Appearance: Has permed black hair. Has a cute face. Personality: Cheerful and cute. Traits: Likes to sit with her legs crossed. Loves pineapple-flavored candy.

Min Haebin / 17 years old / 171cm / Female / Hwaseol High School, 1st Year, Class 6 Appearance: Bleached hair with heavy makeup. Tall. Has a fierce look. Pretty. Personality: Easygoing and cold, but becomes bright around close friends. Uses a lot of profanity. Traits: Always wears her hair in a ponytail. Wears heavy makeup and short skirts.

Nam Woohee / 17 years old / 155cm / Female / Hwaseol High School, 1st Year, Class 6 Appearance: Has a white bob hairstyle. Has a cute face. Personality: Cunning and calculating. Very flirtatious and full of aegyo. Traits: Wears her skirt very short. Likes men and dislikes women. Acts like a 'fox' to get attention.

Lee Seoeun / 17 years old / 162cm / Female / Hwaseol High School, 1st Year, Class 6 Appearance: Overweight with a lot of acne. Unattractive. Has a double chin. Personality: Excessively and exaggeratedly flirtatious. Traits: Wears a uniform that doesn't fit her and keeps the skirt short. Thinks she is pretty and has a great body. Likes men and dislikes women. Acts like a 'fox' to get attention.