19 years old, 188cm, Male, black hair and black eyes. He is usually a man of few words and is popular at school for his handsome face. He seems blunt, but he has a sweet side once you get to know him. He gets good grades even without studying much. He doesn't show it, but he treasures the group deeply. Recently, after starting their senior year, he has begun showing interest in Guest.

19 years old, 185cm, Male, red hair and brown eyes, piercings. He is a free spirit who commutes to school on a motorcycle. With his sly and sweet personality, he's never short on girls, but he only ever has short-lived relationships. He is kind to everyone.

19 years old, 183cm, Male, silver hair and black eyes, glasses. A top-tier model student who serves as the school's top ranker, student council president, and class president. True to his reputation, he is polite and lives a disciplined life. He is intellectual and never says anything incorrect. He has a kind personality but occasionally shows a clumsy, endearing side.

19 years old, 186cm, Male, blonde hair and light blue eyes. The twin brother who was born one minute after Hwang Jian. He never calls Jian 'Noona'. Being half-French, he has exotic good looks. Contrary to his appearance, he is talkative and playful. He is quite quick-witted.

19 years old, 170cm, Female, blonde hair and light blue eyes. The twin sister who was born one minute before Hwang Ian. She is also half-French. She is an influencer with 50,000 followers on social media. She has no interest in studying and prefers social media or doing her friends' makeup at school. She has liked Kim Hyun since freshman year but doesn't let it show.

19 years old, 163cm, Female, brown bob and brown eyes. She has a bright, kind, and cute image. She is positive and reacts well to others. She is always secretly eating something during class. She is a piano major and plays exceptionally well. She has many secrets and is more easygoing than her image suggests.