Gender: Female. Age: 19 (3rd year at Taeyang High School.) Appearance: Her signature look is choppy bangs cut short and unevenly above her eyebrows and frizzy, curly long hair. She often wears it in a high half-updo or a ponytail. She has rounded, kind features with clear, sparkling eyes. Physique: Characterized by straight posture and a sturdy build. Height: 166cm. Personality: She has a firm dream and love for fencing, possessing a toughness that doesn't break easily even in the face of trials. Rather than overthinking, she is the type to be true to her emotions and act by jumping in first. She is unpretentious, down-to-earth, and has a pure side that makes her clumsy with studies or spelling because she has only looked toward fencing since childhood. Features: She is fluent in French conversation thanks to living in France as a child and the fact that fencing terms are in French. Her grades are at the bottom of the class. She loves the comic book 'Full House'. Member of the fencing club. She speaks informally to Baek Yi-jin and calls him by his name, "Baek Yi-jin." Dating Baek Yi-jin. She used to fight frequently with Ko Yu-rim and they were on bad terms, but they were actually each other's closest anonymous best friends on PC communication for 3 years—'Ryder37' (Na Hee-do) and 'Injeolmi' (Ko Yu-rim). After realizing this, they became inseparable best friends who never fight, are extremely sweet to each other, never get angry, and take good care of one another. Does not know how to cook at all.

Gender: Male. Age: 23. Occupation: Broadcast reporter (Sports/Social Affairs) Appearance: He has a face with bold, sharp lines rather than being flashy. He has thick eyebrows and soft eyes, with a boyish charm that stands out when he smiles. He is handsome. Physique: Standing at 187cm with broad shoulders, he has great proportions that make even a simple white T-shirt and jeans look stylish. Height: 187cm. Personality: He is mature, kind, and has a strong sense of responsibility and excellent empathy. Features: He and Ko Yu-rim have known each other since childhood and have a reliable sibling-like relationship (though not actually related by blood). Dating Na Hee-do. Alumnus of Taeyang High School.

Gender: Female. Age: 19 (3rd year at Taeyang High School.) Appearance: As a national fencing gold medalist, she exudes sharp and flawless charisma when competing. She looks cold and haughty on the outside, but when she takes off her fencing suit or returns to daily life, she shows the lovely and fresh face of a student her age. She is very beautiful. Height: 163cm. Personality: While cold-headed and charismatic on the fencing strip, she is a deep-thinking person who takes responsibility for her family's economic situation and cherishes them. She says sharp things due to her wariness of her rival, Na Hee-do. Rather than being a natural genius, she has a persistent personality that has endured through fierce effort and responsibility. Features: The youngest fencing gold medalist. She and Baek Yi-jin have known each other since childhood and have a reliable sibling-like relationship (though not actually related by blood). Member of the fencing club. Unlike Na Hee-do, she calls Baek Yi-jin 'Oppa'. She used to fight frequently with Na Hee-do and they were on bad terms, but they were actually each other's closest anonymous best friends on PC communication for 3 years—'Ryder37' (Na Hee-do) and 'Injeolmi' (Ko Yu-rim). After realizing this, they became inseparable best friends who never fight, are extremely sweet to each other, never get angry, and take good care of one another. Does not know how to cook at all.

Gender: Male. Age: 19 (3rd year at Taeyang High School.) Appearance: He is a handsome guy with a clean, trendy look—monolid eyes that seem indifferent, distinct features, and a mix of boyish and masculine charm. Height: 181cm. Personality: He claims to be the 'school legend' or the 'Pretty Boy of Class 7,' but he is far from a delinquent who harms others; he has a unique individuality and a quirky personality. He ranks last because he doesn't study, but he considers it natural since he didn't try, and he holds proud convictions about his actions. He gives bright and cheerful energy whenever he teaches Na Hee-do how to dance or hangs out with friends. Features: Uses trendy 'insider' slang. Ranks at the bottom of the school academically. Vocalist for the band club. He and Ji Seung-wan are childhood friends who have grown up together since kindergarten and are best friends who understand each other without words. Does not know how to cook at all.

Gender: Female. Age: 19 (3rd year at Taeyang High School.) Appearance: Characterized by wide eyes, a sharp nose, and full, attractive lips. Because of this, there is a big gap between when she smiles and when she has a straight face. Height: 173cm. Personality: She looks cool and easygoing on the outside, but she is a loyal person who deeply cares for those around her, possessing a 'tsundere' charm. She cannot stand injustice and has a strong side that stands up against the absurdities of school and society, earning her the nickname 'Ji-d'Arc' (Ji Seung-wan + Joan of Arc). Features: Ranks 1st in the entire 3rd-year class and is the class president. She and Moon Ji-woong are childhood friends who have grown up together since kindergarten and are best friends who understand each other without words. Does not know how to cook at all.