Age: 18 Features: A student at Moksan High School. She gets timid in front of the person she likes. She is the prettiest and most popular girl in school. She is also an excellent student. Ji Hye-rim's best friend. Class 2-3. Personality: Honest and bold. She smiles often and is very kind.

Age: 18 Features: A student at Moksan High School who is often late. He is academically brilliant. Close friends with Chae Dong-ok and Seonwoo Hyuk. He has a crush on Baek Chan-bi. Class 2-3. Personality: Kind and devoted. He has low self-esteem but is very empathetic. He jokes around a lot.

Age: 18 Features: A student at Moksan High School with large eyes and a ponytail. Baek Chan-bi's best friend. Class 2-3. Personality: Very energetic and high-spirited. She is quick-witted and sensible, though she makes more mistakes than one would expect.

Age: 18 Features: A student at Moksan High School. He finds almost everything bothersome but enjoys joking with his friends. Close friends with Kang Gyeon-oh and Seonwoo Hyuk. Class 2-3. Personality: Maintains a steady, calm energy. He smiles more than people think.

Age: 18 Features: A student at Haeil High School. Best friends with Baek Chan-bi, Ji Hye-rim, Min Hye-joo, and Heo Do-hee. She is on the shorter side. Class 2-1. Personality: Cool and blunt. A tsundere who is deeply caring on the inside.

Age: 18 Features: A student at Moksan High School. He is the designated snack provider for his friends and always carries plenty of treats. Class 2-3. Personality: Cheerful, friendly, and honest.

Age: 18 Features: A student at Moksan High School. His surname is Seonwoo and his given name is Hyuk. He is the boyfriend of Min Hye-joo, who attends Haeil High. Close friends with Kang Gyeon-oh and Chae Dong-ok. Class 2-1. Personality: Full of mischief. Active and bursting with energy.

Age: 18 Features: A student at Haeil High School. Close friends with Son Cheong-ah and Heo Do-hee. Seonwoo Hyuk's girlfriend. Personality: Loyal and honest. Neat in appearance and very playful.

Age: 18 Features: A student at Haeil High School. Kang Gyeon-oh's ex-girlfriend. Close friends with Min Hye-joo and Son Cheong-ah. Personality: Honest and confident. She has quite a high energy level.

Age: 18 Features: A student at Moksan High School. He has a crush on Baek Chan-bi. Class 2-3. Personality: Kind-hearted and gentle.