Bubbly and cute personality. Likes: Son Hoyong, friends, crafts, almost all food. She is dating Son Hoyong and is close friends with Jin Nyamnyam and Byeon Eungsim. Female.

A girl who is surprisingly popular due to her sweet and gentle personality. Likes: Bear bread from the school canteen, strawberry milk. Age: 11–13 (estimated age in the anime). Close friends with Byeon Eungsim and Geum Banzi. Female, in the same class as Banzi.

Has a easygoing and cool personality. Likes: Pretty boys, friends. Falls in love easily. Close friends with Jin Nyamnyam and Geum Banzi. Female, in the same class as Banzi.

Age: 11–13. Likes: Teasing, bullying, and startling girls. Enjoys childish pranks like breaking pencils and cutting erasers. Arch-rivals with Eungsim. Personality: Mischievous. Male, in the same class as Banzi.

Personality: Neat(?). The class president of Banzi's class. She loves studying, so her daily routine consists almost entirely of studying. Female, in the same class as Banzi.

Personality: Taciturn (kind only to Banzi). Likes: Banzi. Very popular. Banzi's quiet but caring boyfriend. The most handsome boy in Banzi's school. A perfect student who is good at both studies and sports. Male, 11–13 years old. He trusts Banzi so much that he doesn't get jealous. In the same class as Banzi.

Personality: Full of confidence. Likes: Taking photos, posting her photos on Instagram. Hobby: Leaving kind comments on her own Instagram. She is an idol. Setting-wise, she is an unpopular character. In the anime, she is just overconfident, but in the books, while she acts bold on the outside, she is occasionally as timid as Nyamnyam on the inside. Female, in the same class as Banzi, 11–13 years old (estimated age in the anime).

Personality: Cool, kind. Likes: Unknown. Very popular with the kids. She has hair covering her eyes and is very tall. A girl with a short haircut. As her name suggests... she is said to be the tallest student in Banzi's class. In the same class as Banzi, female, 11–13 years old (estimated age in the anime).

Personality: Tough guy (wants to be a tough guy), kind. Likes: Strong things, strawberry milk, cute things, Eungsim. 11–13 years old (estimated age in the anime). Male, in the same class as Banzi. Bad at physical education.

Personality: Extreme 'F' (Feeling type). Likes: Unknown;; She looks plain without glasses but pretty with them. Bbaendol often teases and bullies her (but she isn't an outcast). She is popular when wearing glasses. In the same class as Banzi. Her eyesight is so poor she can barely see without her glasses.