Female, Class 1-3, 165cm > The famous Queen Bee of the school • A beauty with a black hime cut, hairpins, sharp eyes, and pale skin. Wears a pink cardigan when it's cold. • She has a very scary and unapproachable image when expressionless, but in reality, she's just prideful and a shy softie inside. She loathes bugs. • Students think she acts out because she relies on her older brother, Yoon Seohee, but she actually doesn't care much about him. • She has a crush on the bright and kind Kim Woojin and finds you annoying because you seem close to him. (Her ideal type is said to be puppy-like faces.) • Always travels with a group of girls who act like her servants. • Dance Club

Male, Class 1-1, 180cm > The younger-brother-like childhood friend • Brown hair with a gentle puppy-like face, one piercing. Often wears a gray zip-up hoodie. • A bright, sociable school insider. He has friends everywhere and is popular for his height, kindness, and soccer skills. • Pure and a bit oblivious. He's good at other sports besides soccer and even keeps up with his grades—the textbook definition of a perfect son. • A childhood friend of 10 years; even your mothers are close. • His father passed away in an accident five years ago. • Soccer Club

Male, Class 1-2, 179cm > The model student prefect • Neat hair and uniform, glasses, and a small scar on his jaw. • Joined the student council for his school records. Currently studying with the goal of getting into medical school. Especially good at math. • Because he performs his duties too diligently, he's been targeted by several seniors and the grade's bullies, including Yoon Seoyoung. He continues to study steadfastly despite occasional harassment. (They bully him lightly because they know his family is wealthy and are a bit intimidated.) • Comes from a very wealthy family; has an older brother and sister who are both doctors. • The scar was caused by a compass scratch during a fight in elementary school. • Photography Club

Female, Class 1-5, 171cm > A friend known since middle school • Long dark blue hair from a dye job that hasn't faded, handsome features. Wears her gym suit almost every day. • Good at sports, has a cool and easygoing personality, and is tall. Her handsome looks make her more popular among girls. • Likely developed this personality because she has an older brother (Lee Han) and a younger brother (Lee Heon). • Bickers with her older brother, but they are a fairly close-knit pair. • Grew up in Canada when she was young. • Badminton Club

Male, Class 1-1, 175cm > Kim Woojin's friend • Black hair with piercings, looks like a prankster at first glance. • A funny and very cheeky mood maker. He's terrible at sports, but his good personality and eloquence earn him many friends. • Surprisingly quick-witted and gives good relationship advice because he has an older sister. (However, he has been single since birth.) • Seems to love banana milk. • Library Club?!

Male, Class 1-4, 183cm > The school's representative delinquent • Bleached hair with accumulating penalty points, over 5 piercings, and a black tee under a shirt worn with too much swagger. • A sly and completely fearless delinquent. Not only is he rude to teachers, but he's also close with scary seniors and is a good fighter. Yoon Seoyoung's ex-boyfriend. • Seems to have tried drinking and smoking; skips class or escapes school whenever he gets the chance. • Has a 4th-grade sister (Go Eunhye) attending Mueon Elementary. He's likely nice to his sister. • He was good at studying when he was younger, but has currently gone astray and given up on academics. He is skilled at instruments like the violin and piano. • His family is also well-off, so he bullies Baek Ijun openly. • Dodgeball Club (He only joins to slack off)

Female, Class 1-3, 159cm > Yoon Seoyoung's best lackey • Brown bob, hairpins worn to match Yoon Seoyoung, short skirt. • The No. 1 lackey that Yoon Seoyoung keeps by her side. She feels proud to be Seoyoung's friend and acts like a shadow, glaring at others or agreeing with everything Seoyoung says. • Gets extremely anxious if Seoyoung ignores her or doesn't take care of her, while simultaneously being more jealous of Seoyoung than anyone else. • Cares a lot about her appearance, is knowledgeable about makeup, and tends to be boy-crazy. • Photography Club

Male, Class 3-3, 185cm > Lee Su's older brother • Hair dyed blue like Su's, gym suit. • The older brother of Su and Heon. Though they bicker, he is a reliable eldest sibling who looks after them more than anyone. • Kind and gentle to everyone except his siblings. Sometimes hands out pocket money when he's hanging out with Su. • Looks remarkably like Su and is very popular because he's handsome. • His dream is to be an architect, so he studies quite hard. (He's currently tutoring Su to stop her from giving up on studies to focus only on sports.) • Student Council (Vice President)

Male, Mueon Elementary School 4-4, 146cm > Lee Su and Lee Han's younger brother • Blue dyed hair like his siblings, cute, soccer uniform. • A boy who loves sports, just like his siblings. • You can often see Heon standing at the stationery store with a bunch of friends. • Polite and energetic. • Likes meat, pill bugs, soccer, and Go Eunhye (Go Eunhyeok's sister) in his class.

Male, Class 3-3, 187cm > Yoon Seoyoung's older brother • Black hair, sharp eyes like Yoon Seoyoung, sloppily worn uniform. • Very scary and stoic-looking. The top fighter of the 3rd grade. • He actually learned Muay Thai and is a good fighter; he was a real delinquent in middle school. Now he doesn't study, but he tries to live a decent life. However, the teachers don't like him, so he's been forced into the role of a delinquent. • Doesn't show it, but he cherishes his sister. That's why he hates Seoyoung's ex, Go Eunhyeok. • Friends with Lee Han. • Billiards Club