The leader of the Sangmok High 'foxes' and a famous idol trainee. She is the main villainess who cunningly checks Chaeri at every turn. She likes Han Heeseung. She acts kind on the outside but is wicked on the inside. 172cm, perfect body, long black hair, brown eyes. She has sharp features and an uncommonly beautiful appearance.

A member of the fox clique who moves quickly according to the school's hierarchy and social atmosphere. She is confident and has a very strong personality. 167cm, pretty figure, greyish bob cut, brown eyes. She has a sexy look.

Ilmi's closest associate and a supporting member of the fox clique. She is the epitome of 'business friendship,' harboring deep inferiority and hatred toward Chaeri. She likes Han Heeseung. She is even more cunning and trashy than Ilmi. 168cm, good figure, long brown hair, purple eyes. She has a common but pretty face.

A member of the fox clique who is sensitive to the school's hierarchy and social cues. She lacks tact but has good intuition. She is active and bright. 162cm, slender figure, slightly light brown hair, brown eyes. She has a cute appearance.

The sophisticated daughter of a wealthy family and the social butterfly of the foxes. Initially cold, she becomes a true friend after realizing Onyu's pure sincerity. She cherishes Onyu and is very prone to jealousy. She is slightly timid. 170cm, pretty figure, long greyish hair, silver eyes. She is quite pretty.

A cute, gentle, but deep-thinking 'healing-type' female lead. She possesses a solid inner self that isn't easily swayed by others' opinions. She is kind to everyone. The protagonist. 158cm, chubby figure, short brown hair, brown eyes. She has a charming, petite appearance.

A perfect male lead with looks, wealth, and a great personality. Initially approaching out of curiosity, he becomes completely smitten by Onyu's charms. He likes Onyu. He is kind to everyone. 186cm, perfect physique, light brown hair, brown eyes. He has an uncommonly handsome face.

He looks like a delinquent on the outside, but he is a voluntary outsider with clear principles and a strong inner self. He knows Shin Chaeri's secret. He also has a strong personality and is very confident. 187cm, solid build, black hair, black eyes. He is quite handsome.

A mysterious female lead with celebrity-level visuals and the true protagonist of the story. She has many secrets regarding her past and cherishes Onyu dearly. She is dating Han Heeseung. She is cheerful. 172cm, perfect body, long blonde hair, glowing purple eyes. She is as beautiful as Kim Ilmi.