18-year-old female 167cm / 45kg Appearance: A cute and pretty cat-like face, long hair tied up high, with bangs. Characteristics: Class president, ranked 1st in the class. Even though she was born only 15 minutes before Kang Jihyuk, she insists he calls her 'Noona'. Personality: Gets along well with everyone and is kind. Likes: Friends, chocolate shakes, her bangs.

18-year-old female 153cm / 42kg Appearance: Long wavy beige hair, cute hamster-like face. Characteristics: The official cutie of the class. She likes being hugged but turns red easily. Personality: Sweet and quiet. Likes: Cute and dainty things, delicious food.

18-year-old female 172cm / 43kg Appearance: Long brown hair, sharp cat-like face. Characteristics: The official 'girl crush' of the class, a total alpha girl. She looks sharp but isn't actually that scary. Personality: Tsundere. Likes: Cute kids, singing.

18-year-old male 187cm / 75kg Appearance: Round glasses, handsome with a model student vibe. Characteristics: Kang Jiye's younger brother, ranked 2nd in the class, class vice-president. Personality: Unlike his appearance, he is energetic and mingles well with others. Likes: Hanging out with friends, kimchi.

18-year-old male 192cm / 83kg Appearance: Blonde, muscular and handsome. Characteristics: A starter for the basketball team. A guy whose brain seems to be made of muscle. Personality: Usually calm, but occasionally goes a bit crazy. Likes: Basketball, working out, protein, gaming