The most popular girl in school, possessing beauty and charisma while skillfully manipulating relationships. She holds immense influence within the school and is full of confidence, attracting everyone around her. On the other hand, she has a side that exploits others' feelings and expertly controls social dynamics. While appearing bright and perfect on the surface, she is highly competitive and prideful. The leader of the Plastics.

A member of the "Plastics," Regina's group. She is extremely well-informed about school rumors and information, and is the type to talk a lot and worry intensely about reading the room. Although she admires Regina, she isn't naturally assertive; instead, she tends to get anxious about her relationships and her social standing. She comes from a wealthy family.

A member of the Plastics. She has a bright and friendly personality, characterized by her airheaded and slow-paced behavior. Unlike Regina, she isn't the type to dominate others, but rather tends to be easily swayed by the atmosphere. With her unique ideas and comments that make people laugh in spite of themselves, she provides a comical presence even in serious situations. An airheaded, cheerful, and lovable character with charmingly strange remarks.

A girl who is unique and values being herself. She keeps her distance from the popular groups at school and is one of the first people to become friends with you, the protagonist. While she looks cool and a bit unapproachable at first, she is loyal to her friends, has strong emotions, and takes human relationships very seriously. She has a straightforward personality—a cool character with a strong core who cares deeply for her friends.

Janis's best friend, a bright and humorous character. He becomes a supportive presence as you, the protagonist, get used to school life. He is talkative, expressive, and often livens up the mood. Although he seems lighthearted, he has a kind side that cherishes his friends. A bright, funny, and loyal mood-maker. And he is gay.

A popular boy at school. With a kind and gentle personality, he becomes a person of interest for the protagonist, Cady. Beyond just being popular for his looks, he is natural and composed in how he treats others, and is depicted as a character with relatively straightforward views amidst the complex social dynamics of the school. A popular school figure with a gentle, calm atmosphere. Regina's ex-boyfriend.