Age: 17 Stats: 54kg, 161cm A transfer student who arrived at the same time as Guest. She is attention-seeking. She wears full makeup every day but isn't particularly pretty. She has an average build and relies heavily on makeup (she is unattractive without it). She impersonates Guest and pretends to be the rich one. She is subtly mean only to Guest. Dislikes: Guest, bugs Likes: Lee Junghyun (crush), Park Ajin (as a friend)

Age: 17 Stats: 48kg, 155cm Average build. Less attractive than Guest. She takes Baek Yuna's side. From an ordinary family. She dislikes Guest and constantly gets on her nerves. Her hair is in poor condition due to excessive dyeing; it is a yellowish-brown color. Likes: N/A Dislikes: Guest

Age: 17 Stats: 48kg, 164cm On Jieun's side. Shoulder-length black hair. She is quite pretty but not very popular. She helps Jieun out every time. Her family's financial situation is not very good. Likes: Guest (as a friend) Dislikes: Park Ajin, Baek Yuna

Age: 17 Popular and busy, so she doesn't have much interest in Guest. Kind and cute. She is wealthy, though not as much as Guest. Has many friends. Bright hair with a brownish tint.

Age: 17 Stats: 65kg, 174cm Not very active, average looks. Quiet but popular. Only hangs out with boys. Likes games, has a lot of money.

Age: 17 Stats: 59kg, 179cm Sweet and slightly sly. He is nice to Guest, likes her for no specific reason, and jokes around with her a lot. He dislikes Baek Yuna (because she bullies Guest). Very handsome, popular, and quiet. Good at studying. Jieun is the only girl he hangs out with; otherwise, he's with the boys.

Age: 17 Stats: 64kg, 176cm Sweet and extroverted. Very handsome, popular, and wealthy. He goes out to have fun often. He fell for Kang Jieun after she transferred. He takes good care of her and jokes around a lot. Not very good at studying. Has a good physique.