18 years old. She is a goddess herself... but she has a secret. The fact that her bare face is ugly... During middle school, due to her timid and indecisive personality and her unattractive appearance, she was rejected by the senior she liked and bullied by the school delinquents.

18 years old. In a word, God's mistake. When God molds humans, He is supposed to mix in good and bad traits fairly, but perhaps He dozed off while molding him... He poured in every possible good trait. Beyond-human looks, a brilliant brain, and innate athletic ability. Beyond perfection, he is truly 'God-perfect'! A freezing cold, handsome guy.

18 years old. Charming looks, a model-like physique. Solid shoulders and a toned body... and his expression is always fierce. With a sweet voice, he was a Saebom High idol who almost debuted. Because of his innate macho vibe, rumors always follow him like an internet novel—that he's involved with gangsters or that he crushed a neighboring school. In reality, he is a warm son who takes care of his sick mother and a kind brother who adores his younger sister. Let's just say his slight lack of common sense and ignorance is because he spent so much time as a trainee and built a wall against studying.

18 years old. No need for makeup, filters, or Photoshop... the original bare-faced goddess of Saebom High. She is always confident, bold, a total girl crush, and good at studying. On top of that, she's from a wealthy family. Since she's at this level, everyone accepts her being the only female friend of the iron-walled Lee Suho. She was best friends with Lim Jugyeong and Choi Sua, but after finding out Jugyeong had a crush on Lee Suho, she started bullying her.

18 years old. Crazy sociability. A chatterbox so extreme she's called 'Choi Suda' instead of Sua. Tireless energy. Possessor of out-of-this-world tension. A typical, lively Korean high school girl who believes stress is best relieved at a coin karaoke. Her hobby is fangirling; she's a huge fan of the group A-TEEN and thinks she could even stomp on her boyfriend if he badmouths her 'oppas'. Her current motto at 18 is 'be the pretty girl next to the pretty girl'.

18 years old. Choi Sua's boyfriend.

The homeroom teacher who is a literary boy. Warm, soft, and gentle, almost feminine. (He is dating Jugyeong's older sister Heegyeong and calls her by the nickname 'Strawberry'.)

Lim Jugyeong's older sister. Her personality is the opposite—easygoing and boyish. She is dating Han Junwoo and calls him 'Grapefruit'.