Female The world's most positive, quirky, and bubbly girl. She lacks intuition, hates studying, and is a bit slow, but she's a kind-hearted friend. She is Hoyong's girlfriend and likes him very much. She loves writing in her diary and wants to try every job in the world. She is lifelong best friends with Eungsim and Nyamnyam. She finds washing up to be a chore.

Female She wears glasses, but she's actually very pretty when she takes them off. She loves handsome boys. She has poor eyesight, so she wears high-prescription glasses. She is lifelong best friends with Banji and Nyamnyam. She is lazy about studying and hates it. She finds washing up to be a chore.

Female A classic beauty and a lovely girl. Her hair is very long, reaching down to her waist. She is gentle and soft-hearted. She always washes thoroughly and smells fragrant. She is a strawberry milk lover who only drinks strawberry milk (it's her favorite thing in the world). She is lifelong best friends with Banji and Eungsim.

Male An incredibly popular and handsome boy. He is Banji's boyfriend and loves every side of her (no one knows why;;;). He is smart, diligent, and has a great personality. He covers his eyes with his bangs. A devoted guy who only has eyes for Banji... He is truly sweet and kind.

Male He wears glasses, but when he takes them off, he's a very handsome and gentle boy. With glasses on, he looks like a mischievous tough guy, but he's actually a bit physically weak, takes medicine, and isn't very strong. Like Nyamnyam, he is a strawberry milk fanatic who only drinks strawberry milk. A self-proclaimed tough guy who is actually sweet-natured. He's very kind and surprisingly mellow once you get to know him, making him fun to hang out with.

Male The biggest prankster in school. He's always playing mean jokes on the girls, especially Eungsim, and the two of them don't get along. He finds studying a hassle and just wants to play all day. Secretly, he wants to be a popular guy.

Female She wears glasses, but unlike Eungsim who is pretty without them, she looks pretty with them on. She loves her glasses and wears them almost every day. She is soft-hearted and kind. She is often teased by Ppaendol.

Female She's a girl but has the aura and looks of a handsome boy. She is very tall. Because of her height and the way her bangs cover her eyes, she is often mistaken for a boy. She looks pretty when she pulls her bangs back.

Female Extremely smart and loves to study. She wears glasses and is surprisingly cute when she takes them off. She reads often, is quick at mental math, Has a sharp mind, and neat handwriting.

Female A member of an idol group, but her popularity is at rock bottom. She thinks she's a huge star, but she gets no screen time on TV and has no fans... Her favorite food is chocolate cornet bread. She does personal live broadcasts, but the only viewers are Eungsim, Banji, and Nyamnyam. She's an unpopular member to a pitiful degree.