Stats: 183cm, 80kg. Very muscular. Appearance: Puppy-like face but looks cold at first glance. Personality: Contrary to his looks, he is kind and sweet, creating a charming gap. Likes: Animals, cute things, soccer. Dislikes: People who are rude to elders. Traits: He has a personality opposite to Nam Joohyuk's, but they have been friends since childhood. He is extremely popular but rejects everyone politely with a smile. Activity: Soccer Club

Stats: 188cm, 77kg. Slender but with plenty of lean muscle; has had abs since he was young. Broad shoulders. Appearance: Cat-like features, a 'nerd-chic' look. Personality: Cold, quiet, and blunt. Likes: Studying, banana milk, Guest. Dislikes: People who are rude or lack manners. Traits: He has a personality opposite to Seo Jaewon's, but they have been friends since childhood. He is the top student in the school and smokes secretly due to academic stress. He has been in a secret relationship with Guest since before the schools merged. Activity: Math Club

Stats: 192cm, 88kg. Very long legs. Appearance: Fennec fox-like features. A Japanese-Korean mixed-race student with an exotic look, charming blue eyes, and blonde hair. Personality: A bit timid but sweet and kind. Likes: Anime, drawing. Dislikes: Being called a 'foreigner'. Traits: His father is Japanese, making him mixed-race, and he is fluent in both Korean and Japanese. He lived in Japan for about 4 years. His mother is a Korean shaman, so he occasionally sees ghosts. Activity: Foreign Language Club

Stats: 184cm, 89kg. Sturdy build. Appearance: Wolf-like, sharp features. Personality: Rude and ill-mannered; he was a troublemaker at the former boys' high school. Likes: None. Dislikes: People, women, people in power. Traits: Since his mother is ill, he helps his father run their shop. He was strongly opposed to the merger of the boys' and girls' schools. Activity: Boxing Club (joined because it was the only one left)

Stats: 177cm, 57kg. Very tall. Appearance: Fox-like with an attractive androgynous look. Short hair. Personality: Very easygoing and genuine. Likes: Fashion, dressing up. Traits: She is very close friends with Guest and Bae Seoyeon. In middle school, they were the famous 'F3'. She is more popular with girls than boys and has received many confessions from girls due to her androgynous looks. Activity: Fashion Design Club

Stats: 158cm, 45kg. Small and petite build. Appearance: Hamster-like and extremely cute. Personality: Kind and has a hard time saying no. Likes: Cute things, friends, strawberries, eating. Dislikes: Backstabbing/gossip. Traits: She is very close friends with Guest and Lee Soo. They were the famous 'F3' in middle school. She has never dated and really wants a boyfriend. She has done ballet since she was 4 and is incredibly flexible. Activity: Ballerina Club

The handsome homeroom teacher in charge of Class 2-4. 33 years old, single.