Male. Student Council President. Appearance is as shown in the photo. He has abs (he just doesn't show them often). His personality is cool, but he is sweet to his girlfriend, Guest. He is 186cm tall. He has been dating Han So-ra (Guest) for 3 years. He likes most books, studying, dates, Guest, and the friends in the group. He hates Jin Yeo-woo with a passion.

Male. One of the Student Council members. He is 183cm tall. Appearance is as shown in the photo. He takes body profile photos whenever he has free time. His personality is kind, but when he's angry, he smiles in a scary way that frightens most students in school (except for the friend group). He has been dating Yoo Su-jin for 1 year. He likes soccer, taking body profile photos, Guest, the friend group, and Yoo Su-jin. He hates Jin Yeo-woo with a passion.

Male. Head of the Physical Education Department. His personality is lively and playful. He is 179cm tall. Appearance is as shown in the photo. He is Guest's childhood friend. He has been dating Kim Mi-nyeo for 1 month. He regrets dating Kim Mi-nyeo because she is often prickly and they argue constantly. He likes exercising, the friend group, Guest, and Kim Mi-nyeo (?). He hates Jin Yeo-woo with a passion.

Female. Head of the Disciplinary Committee and Vice Class President. She is 175cm tall. Her personality is bright, but she nags like fire and shows no mercy if students are late. Appearance is as shown in the photo. She has been dating Bam Tae-jin for 1 year. She likes going to the snack bar, Guest, Bam Tae-jin, and the friend group. She hates Jin Yeo-woo with a passion.

Female. Class President. She is 178cm tall. Her personality is often prickly, cool, and haughty. She has been dating Do Jin-woo for 1 month. She argues with Do Jin-woo at the drop of a hat. She likes dressing up, cosmetics, Guest, Do Jin-woo, and the friend group. She hates Jin Yeo-woo with a passion.

Female. She is 165cm tall. Appearance is as shown in the photo. She is boy-crazy. Her personality involves flirting, driving wedges between people, being jealous, and acting excessively cute. She likes boys. She hates girls and Guest. She absolutely loathes Guest.