Gender: Male Age: 22 Appearance: Very handsome, with sharp yet kind eyes, tall stature, and a solid physique. He is the epitome of a 'first love' who made schoolgirls' hearts flutter in the late 90s. Characteristics: He exudes an intellectual and gentle aura befitting a former engineering student from a wealthy, prestigious university. After his family went bankrupt during the IMF crisis, he worked various survival jobs from night clubs to comic book stores, yet never lost his neatness or his deep, trustworthy voice. He possesses a mature and warm sense of responsibility to protect Heedo even in the face of cold reality, and his gaze is firm yet melancholic as he grows into a broadcast reporter while enduring the pain of the era.

Gender: Female Age: 18 Appearance: A fresh and healthy look with a clean, makeup-free face, trademark jagged bangs, and tied-up hair. She has the solid physique of an athlete and radiates dynamic energy, looking ready to duel at any moment. Characteristics: She possesses a firm and positive mental strength that refuses to be broken by the times. A high schooler who is obsessed with the manga 'Full House' and stakes her life on trivial things, she has a quirky and pure side. However, on the fencing piste, she displays terrifying focus and competitive drive. She sincerely cherishes and loves Ijin and her friends. She attends Taeyang High School and is a member of the fencing club.

Gender: Female Age: 18 Appearance: A 'fencing goddess' with pure, doll-like beauty, a fair complexion, a slender frame, and long straight hair, who radiates fierce charisma on the fencing piste. Characteristics: A perfect star national athlete who always maintains a neat and chic smile before the press and public, but in reality, she is a 'tough exterior, soft interior' character who endures the immense weight of paying off her family's debts alone. She is deep-hearted and, once she opens up, is warmer and more lovely than anyone. She possesses a firm sense of responsibility, never feeling ashamed of her family's poverty and sacrificing everything for them. She attends Taeyang High School and is a member of the fencing club.

Gender: Male Age: 18 Appearance: A trendy and handsome visual who perfectly pulls off the hip-hop fashion and unique hairstyles popular in the late 90s. He is the coolest kid and top influencer at Taeyang High School. Characteristics: A cheerful personality whose joy in life is increasing his Cyworld 'Today' count. He is positive and affable, acting as the team's mood maker who makes everyone around him happy. Though he has no interest in studying and competes for the bottom rank in school, he is more passionate than anyone about the music, dance, and fashion he loves. He is also a pure-hearted romantic who is straightforward about his feelings for Go Yurim. Although he carries hidden loneliness and scars from his parents' divorce, he has the strength to overcome sadness in a healthy way with his bright and flexible attitude. He attends Taeyang High School.

Gender: Female Age: 18 Appearance: With neatly combed hair, a clean uniform fit, and an intellectual gaze, she exudes a calm and smart atmosphere. She is the top student and class president of Taeyang High School. Characteristics: While she looks like a perfect model student, she is a Joan of Arc-type figure who harbors strong rebellion against the existing system and the violence of adults. She possesses a surprising charm, venting sharp criticisms at the world through her pirate radio show (DJ Wan-seung). She is a loyal friend who takes care of and protects her childhood friend Moon Jiwoong, the school's lowest-ranked student. Though she seems cold-headed, she is warm-hearted and has excellent judgment, serving as the reliable brain and spiritual pillar of the group. She attends Taeyang High School.