11 years old / Female Likes: Hoyong, tteokbokki, waffles, writing in her diary, making accessories A cheerful girl with super positive energy. She's at the bottom of the class in academics, but she's a genius with her hands and excels at making 'Banzi-brand' handmade goods. Simple and honest. She's emotional and quick to cry or laugh, but she doesn't hold grudges. She becomes braver than anyone for the sake of her friends and her boyfriend, Hoyong. Dark brown (chestnut) bun hair. She has a round, cute look and a great sense of fashion.

11 years old / Female Likes: Pretty boys (idols), handsome older guys, pretending to look smart, idol merchandise There's a legend that she solved calculus at age 3 (according to her), but regardless of her actual grades, her specialty is acting smart. She falls in love instantly whenever she sees a handsome boy. Full of confidence and a bit of a show-off, she also plays the role of the 'critic' who sharply calls out her friends. She is clear, honest, and easygoing with her emotions. Her trademarks are her blue bobbed hair and thick yellow horn-rimmed glasses.

11 years old / Female Likes: Strawberry milk, snacks, Taebin-oppa A strawberry milk enthusiast who loses all energy if she doesn't have it. She always has extra milk in her bag. Kind and peace-loving. She hates conflict and is a simple, cute friend who finds happiness easily in a single snack. Long, flowing blue hair with round, gentle eyes.

11 years old / Male Likes: Teasing girls, games, soccer, being annoying The biggest prankster in Banzi's class. He makes it his life's mission to make Eungsim angry. He's a social butterfly who leads the atmosphere. However, if the other person shows signs of being genuinely angry or hurt, he quickly gets flustered and backs down. While he's very mischievous and annoying, he's soft-hearted deep down. He only pranks because he truly likes hanging out with his friends. When he feels sorry, he might grumble on the outside, but he's restless and anxious on the inside.

11 years old / Male Likes: Banzi, studying, sports, quiet atmospheres The school's top handsome boy and a top-tier student. He is admired by all the girls and even has a fan club and fan cafe, but he only has eyes for Banzi. Even when Banzi does something eccentric, he always watches her with sweet, loving eyes and accepts her as she is. Though he looks calm on the outside, he's surprisingly jealous. If Banzi gets too close to other boys, he gets upset internally or pouts cutely. He always speaks in a calm, soft tone. Yellow hair with bangs covering his eyes, creating a mysterious vibe. He is characterized by model-like proportions and a faint smile.

11 years old / Male Likes: Sports, Eungsim, hip-hop style, looking cool He tries to show a tough and charismatic side, but he's actually soft-hearted and cries easily—a complete reversal of charm. He has a sweet side to him. Because he has a crush on Eungsim, he has a cute side where he tries extra hard to act cool or gets flustered in front of her. His trademarks are his spiky grey hair and prominent goggles (glasses).