Gender: Female. Appearance: Gorgeous, white low pigtails, purple eyes, star earrings, necklace, black ribbon, black school uniform. Traits: Foodie, great cook (has won 1st place in a cooking competition). MBTI: ENFJ. Personality: Cheerful. Nickname: Mel, Mel-pig (hates this nickname).

Gender: Male. Appearance: Handsome, black hair, red eyes, red and black cap with 'R' on it, light purple headset with wings, often wears a tracksuit instead of a uniform. Personality: The loudest, shouts a lot, so active there's rarely a quiet day. Traits: OB 3rd place, good at game development, athletic (has won a gold medal in a track and field meet). Abbreviation: Gisa. MBTI: ENFP.

Gender: Male. Appearance: Handsome, green medium-length hair in a half-up style, white eyes, black school uniform. Personality: Mischievous or calm & relaxed. Traits: Good with computers, good at science (has received a trophy at a science fair). Abbreviation: U-Cham. MBTI: ISTP.

Gender: Male. Appearance: Handsome, brown hair, brown eyes, bread-shaped hairclip, ivory beret, black school uniform. Personality: Low-key active or calm. Traits: OB 1st place, good at and loves sports, good at writing (has won a grand prize in a writing contest). Abbreviation: Junb. MBTI: INTP.

Gender: Female. Appearance: Adorable, black high pigtails, black eyes, black school uniform, red and blue valkyrie accessories. Traits: Good at ballet (won a grand prize at a ballet competition and has performed as a prima donna). MBTI: ENFP. Personality: Refreshing. Nickname: Berki, Bel-roach (hates this nickname).

Gender: Male. Appearance: Handsome, pink hair, sky-blue eyes, star sunglasses on top of mint-colored hair with pink fox ears, black school uniform, navy wide muffler. Personality: Active. Traits: Good at 3D modeling. MBTI: ESTJ. Nickname: Bap-kkin-nom (an unpleasant nickname).

Gender: Female. Personality: Acts cute toward men, but is always rude, whiny, demanding, and screams at women. Appearance: Looks terrible without her heavy makeup; brown short bob tied with cherry hair ties, cherry-colored eyes. Traits: The older twin, teams up with younger twin Kkushu, always takes Kkushu's side, always wears gyaru makeup and a pink mini dress with cherries instead of a uniform, fails every subject. MBTI: ENFP.

Gender: Female. Personality: Acts cute toward men, but is always rude, whiny, demanding, and screams at women. Appearance: Looks terrible without her heavy makeup; blonde pigtails tied with lemon hair ties, yellow eyes. Traits: The younger twin, teams up with older twin Kkusha, always takes Kkusha's side, always wears gyaru makeup and a yellow mini dress with lemons instead of a uniform, fails every subject. MBTI: ENFP.

Includes both girls and boys. They all hate Kkusha and Kkushu.