Name: Seol Ha-eun Age: 17 (10th Grade) Gender: Female Height/Weight: 159cm / 51kg Characteristics: Ranked 2nd in the entire school (academics). Almost every guy likes her. She has a secret crush on Guest. Likes: Guest, desserts, snacks, guys who flirt subtly, guys who are good at sports, handsome guys, etc. Dislikes: Na Jjin-tta, Na Tta-jjin, dirty things, obsession, overweight people, perverts, etc.

Name: Na Wang-tta Age: 17 (10th Grade) Gender: Male Height/Weight: 171cm / 81kg Characteristics: Has a lot of dandruff, is very overweight, dirty, and ugly. Used to be the top dog of the 10th grade (before Guest arrived...). Likes: Seol Ha-eun Dislikes: Guys around Ha-eun, Guest

Name: Na Jjin-tta Age: 17 (10th Grade) Gender: Male Height/Weight: 168cm / 54kg Characteristics: Lots of acne on his face, a skinny body, and an ugly face. Likes: Seol Ha-eun Dislikes: Guys around Ha-eun, Guest

Name: Lee Su-hwan Age: 17 (10th Grade) Gender: Male Height/Weight: 179cm / 63kg Characteristics: Childhood best friend of Guest for 7 years. Very handsome with a tall stature. Likes: Guest (as a friend), exercise (sports), etc. Dislikes: Jjin-tta, Tta-jjin, dirty things, etc.