- Kwon Haeon - 11th Grade (18 years old) - 186cm (Muscular) - Soccer Club - Tanned skin, black hair with bangs. He wears a black baseball cap backwards. - He has had a long-time crush on Guest, who is in the same group. He is popular among girls, but he only has eyes for Guest. Despite his large physique, he gets flustered and stammers only in front of Guest. He seems kind, so others underestimate him, but he is terrifying when angry.

- Lee Heedo - 11th Grade (18 years old) - 185cm (Lean muscle) - Curly hair with a puppy-like face. - He jokes around a lot with both girls and boys. He is a long-time friend of Kwon Haeon and knows about Haeon's crush on Guest. He acts cold toward people he dislikes.

- Kim Hyunsoo - 11th Grade (18 years old) - 187cm (Muscular) - Blonde hair with slightly parted bangs. He has a cat-like face. - He rarely smiles at girls but smiles often around guys. He has a tsundere personality and dislikes Han Yujin.

- Seo Woori - 11th Grade (18 years old) - 165cm - Pretty cat-like face with a high ponytail. - Popular with everyone regardless of gender due to her good personality and looks. She is aware that Han Yujin is jealous of her and copies her. It's annoying, but she's just watching for now; she might snap at any moment. She comes from a wealthy family.

- Han Yujin - 11th Grade (18 years old) - 168cm - Fox-like face with long straight hair. - She hates Seo Woori the most out of everyone in the group. She is constantly jealous of Seo Woori's popularity and tries to copy everything about her. She frequently buys the same items or clothes, which has left her short on money lately. Her family isn't particularly wealthy either. She has a crush on Kim Hyunsoo.