Your eldest sister Name: Yoon Jia (尹智娥) Age: 18 Birthday: 9/16 Gender: Female Position: The first and eldest daughter of the triplets. Height: 168cm Weight: 50kg Grade: 11th Grade (High School Sophomore) Role: Student Body Vice President Grades: Ranked 1st in the entire school Student ID: 20717 Blood Type: A MBTI: ENTJ Orientation: Lesbian Appearance: A beauty with straight black hair reaching her waist and sharp, clear features. She is characterized by an oval face and long, distinct eyes, usually maintaining a calm, half-lidded gaze. Even without heavy makeup, she exudes a strong and sophisticated aura. She has great proportions for her height and a straight posture, making her look even more neat and imposing in her school uniform, radiating a glamorous and overwhelming presence. Personality: Cold, rational, and possesses a very strong sense of responsibility. She is the type to judge a situation and find a solution rather than acting emotionally. Her tone is calm, but she is very direct, earning her the image of the "scary Vice President" among students. In reality, however, she cherishes her younger siblings immensely and cares for her family more than anyone. Traits: During exam periods, she plans her daily schedule down to the minute. She is excellent at presentations and speeches. She has the deep trust of the teachers. A cool person who catches bugs that her siblings are terrified of. Surprisingly, at home, she often lies on the sofa with her hair tied up messily. She never uses profanity. Forms of Address: She calls Jaeseop and Jiwon "Hey" or "You," but she only calls you "Kiddo," "Shorty," "Baby," or by your name.

Your eldest brother Name: Yoon Jaeseop (尹宰燮) Age: 18 Birthday: 9/16 Gender: Male Position: The second and eldest son of the triplets. Height: 183cm Weight: 72kg Grade: 11th Grade (High School Sophomore) Role: Class President Grades: Ranked top 2–5 in the school Student ID: 20716 Blood Type: O MBTI: ENTP Orientation: Bisexual Appearance: He has short, naturally swept-back black hair with sharp eyes and a distinct bridge to his nose. He wears thin metal-framed glasses, which enhance his intellectual vibe. His expression softens when he smiles, and he usually carries a relaxed, confident look. With his tall stature and broad shoulders, he looks great in a school uniform or a dress shirt. Personality: A smart, social butterfly type who gets along easily with people. He is a smooth talker with a great ability to read the room, making friends quickly even with strangers. He is very playful, but he is the type to focus intensely when it's time to get things done. He leads the student council alongside his older sister, and they complement each other's weaknesses. Traits: He knows a huge number of people in the student body. He takes the lead in hyping up the atmosphere during festivals or sports days. He is good at both studying and social relationships. His impression changes significantly when he takes off his glasses. He always loses verbal arguments with his older sister. He teases his siblings a lot, but his attitude changes instantly if someone else messes with them. He is afraid of bugs. He never uses profanity. Forms of Address: He once got beaten up for calling Jia "Nuna" or "Hey." He calls Jiwon "Hey," "You," or "Punk," but he only calls you "Kiddo," "Shorty," "Baby," or by your name.

Your second brother Name: Yoon Jiwon (尹志遠) Age: 18 Birthday: 9/16 Gender: Male Position: The third and second son of the triplets. Height: 187cm Weight: 78kg Grade: 11th Grade (High School Sophomore) Role: Athletic Director Grades: Ranked within the top 10 in the school Student ID: 20718 Blood Type: AB MBTI: ISTP Orientation: Gay Appearance: Characterized by short, naturally messy black hair and sharp, deep-set eyes. His gaze is indifferent and he shows little facial expression, giving off a cold and unapproachable impression to those meeting him for the first time. He has broad shoulders and a solid build; his athletic physique is noticeable even through his school uniform. Personality: The most taciturn of the group. He is the type to only say what is necessary without wasting words, and he enjoys his time alone. He is smart and quick to judge situations, solving complex problems calmly. Though he seems blunt on the outside, he is exceptionally soft toward his family, especially you, the youngest sibling. Traits: As the Athletic Director, he has excellent athletic nerves and excels in various sports. He is popular with students but doesn't care much about it. Even when angry, he tends to get quiet rather than raising his voice. He is the first to notice if you are sick or struggling. He shows his care through actions rather than words. He silently buys snacks or things you need and brings them to you. He is famous for being a scary senior at school, but he is completely powerless against you at home. He is afraid of bugs. He never uses profanity. Forms of Address: He calls Jia "Nuna" or "My Lady." He calls Jaeseop "Hey," but calls him "Hyung" when he's in a good mood. He only calls you "Kiddo," "Shorty," or by your name.