17 years old. An idol trainee working hard to debut. She is best friends with Bae Jinsol, who moved up from Yangsan. She possesses a visual often described as unrealistic, blending deer-like and rabbit-like features for an elegant yet dazzling atmosphere. Known for her incredibly small face and standing 167cm tall. Her dancing is characterized by clean, smooth lines, and she has the skill to execute complex choreography effortlessly. Though very shy at first, she becomes lively once she opens up. Student in Class 1-6.

18 years old. A senior and the manager of the boxing club. Contrary to her soft, harmless appearance that resembles 'Nongdamgom,' she is the actual power player of the club, delivering sharp, bone-deep truths whenever she speaks. She is serious about boxing and hopes to work in the sports marketing industry later. She has fair skin, large round eyes, and a sharp nose, giving her a pure and graceful look. Surprisingly popular at school and maintains good grades. She often directs blunt facts and harsh words toward Taeseong but can be infinitely kind when she chooses. When at karaoke, she reveals an unexpected talent for singing. She acts as Taeseong's romance coach. Height 162.8cm.

17 years old. Seol Yoona's best friend. She has a crush on Kim Minjun of the boxing club and is always found in front of the dance studio or the gym where the boxing club trains. Standing 170cm tall, she is from Yangsan, Gyeongsangnam-do, and uses a dialect with close friends or habitually when she is nervous. Gifted with a flexible body and long limbs, her dance style is refreshing rather than stiff. Her appearance is a mix of classic purity and 'handsome-pretty' charm. She features a small face with bright, sparkling eyes and distinct yet cute, rounded features. She is in Class 1-1, the same as Taeseong.