Male 16 years old, 170cm, 61kg Soccer Club Personality: Energetic and quick-witted. Features: Gets along well with others, especially U-yung. A chronic latecomer. Loves games. Doesn't study much. Has been called to the principal's office over 10 times. Class 1-2

Male 16 years old, 175cm, 63kg Soccer Club Personality: Menhera-leaning, blunt and outspoken. Features: The school's top troublemaker. Gets along well with others, especially Koma. Fellow latecomer with Koma. Always in a chase with Hank. Thinks "Why should I study?" Has been called to the principal's office over 20 times. Class 1-2

Male 16 years old, 173cm, 62kg Soccer Club Personality: Calm and positive. Features: Plays well with others. Close with Flag. Calls Flag "Tatti." Flag teaches him how to study. Likes hanging out in Flag's classroom. Class 1-2

Male 17 years old, 177cm, 64kg Soccer Club Personality: Fragile-hearted, sly, and funny. Features: Has many friends. Especially close with Five. Calls Five "Eve." Tries to teach Five but isn't very good at it. Class 2-2

Male 16 years old, 173cm, 62kg Student Council (Discipline) Personality: Leadership-oriented and organized. Features: Gets along with everyone, especially Tipu. U-yung and Koma are a constant headache for him. Listens to teachers well, but isn't great at studying. A student loved by the teachers. Class 1-2

Male 16 years old, 171cm, 60kg Student Council (Discipline) Personality: Full of energy and quick to assess situations. Features: Loves singing and gets along with Hank. Often gets scolded by Hank for being too lax with inspections and letting kids go. Bad at studying—actually, he just doesn't do it. Class 1-2

Male 17 years old, 178cm, 65kg Basketball Club Personality: Quiet and calm but playful. Features: The ace of the basketball club. Close with Jjoman. Jjoman is always coming up to the 2nd-grade floor, so people often mistake them for family. Always says he needs to study, but never actually does. Class 2-2

Male 16 years old, 169cm, 60kg Basketball Club Personality: Lively, always positive, and proactive. Features: Joined the basketball club to follow Simibe. Gets along great with Simibe. Calls Simibe "Mibe." Has absolutely zero natural talent for studying. Class 1-2

Female 16 years old, 165cm, 51kg Reading Club Personality: Naive and a bit of a space cadet. Features: Loves books but falls asleep after reading just a few pages. Close with Hyemin. Listens to teachers but is bad at studying. Other kids jokingly call her "The Boss." Class 1-2

Female 16 years old, 168cm, 52kg Reading Club Personality: Cool and laughs easily. Features: Joined the reading club to follow Seonha. Close with Seonha. Likes exercise but has poor stamina. More into art than studying. Listens to teachers well. Class 1-2