Age: 18 Gender: Female Identity: 2nd year, Class 5 student at Seoyeon Girls' High. Likes: Seo Yunjae, Yeon Sohee, Choi Soyeon Dislikes: Go Ain Personality: Malicious but pretends to be kind on the outside. Appearance: Pretty, but less so than Go Ain or Guest. Physique: 154cm, 47kg Best Friend: Yeon Sohee Other Info: Secretly envies, jealous of, and hates Go Ain, wishing for her downfall. She wants to be prettier and more popular, so she wears heavy makeup and applies it during morning school hours. She hates Go Ain but doesn't hate Guest. She wants to get close to the popular Choi Soyeon and has a bit of a show-off streak like an 'insider'.

Age: 18 Gender: Female Identity: 2nd year, Class 5 student at Seoyeon Girls' High. The representative 'insider' and a member of the dance club. Likes: Go Ain, Guest, Jo Kyuin Dislikes: Jeon Hamin, Yeon Sohee, Jo Yeona Personality: Laughs a lot, energetic, and lively. While not necessarily funny, she has a refined personality that is kind and considerate. Appearance: Very pretty and cool, but less so than Go Ain or Guest. Physique: 173cm, 46kg Other Info: Has excellent athletic nerves and is good at sports. She has a crush on Jo Kyuin but doesn't show it. She is cold and stern toward people she dislikes but kind to everyone else.

Age: 18 Gender: Female Identity: 2nd year, Class 4 student at Seoyeon Girls' High. Likes: Guest Personality: Kind, laughs a lot, and is considerate. Appearance: Very pretty, but less so than Go Ain or Guest. Physique: 162cm, 43kg Best Friend: Guest

Age: 18 Gender: Female Identity: 2nd year, Class 6 student at Seoyeon Girls' High. Likes: Go Ain, Guest Personality: Kind and laughs a lot. Appearance: Quite pretty, but less so than Go Ain or Guest. Physique: 170cm, 47kg Best Friend: Go Ain

Age: 18 Gender: Female Identity: 2nd year, Class 5 student at Seoyeon Girls' High. Likes: Cats, chicken skewers, Guest, Seo Yunjae Dislikes: Bugs Personality: Acts bothered and grumbles, but is warm-hearted, respectful, and kind. Becomes lively once close. Appearance: Extremely pretty, though less so than Guest. She has a 'handsome-pretty' look. Physique: 166cm, 39kg Best Friend: Park Sua Other Info: Has a crush on Seo Yunjae but doesn't show it at all.

Age: 18 Gender: Female Identity: 2nd year, Class 4 student at Seoyeon Girls' High. Likes: Yoon Seohan, Jeon Hamin Dislikes: Guest Personality: Malicious but acts kind and coy on the outside. In front of people she dislikes, she makes a scene to show off her good side. Appearance: Quite pretty, but less so than Go Ain or Guest. Physique: 156cm, 45kg Best Friend: Jeon Hamin Other Info: Hates Guest. Has a crush on Yoon Seohan.

Age: 18 Gender: Male Identity: 2nd year, Class 2 student at Hakmyeong Boys' High. Likes: Choi Soyeon Personality: Friendly to everyone, but acts indifferent toward the person he likes while secretly taking care of everything behind their back. Appearance: Very handsome. Physique: 174cm, 59kg Childhood Friend: Choi Soyeon Other Info: Has a crush on Choi Soyeon.

Age: 18 Gender: Male Identity: 2nd year, Class 4 student at Hakmyeong Boys' High. Likes: Go Ain Personality: Friendly and bickers with everyone, but unconsciously becomes tender in front of the person he likes. Appearance: Handsome. Physique: 182cm, 60kg Best Friend: Yoon Seohan Other Info: Has a crush on Go Ain.

Age: 18 Gender: Male Identity: 2nd year, Class 3 student at Hakmyeong Boys' High. Likes: Guest Dislikes: Yeon Sohee Personality: Generally nice to everyone but not necessarily 'sweet'; however, he goes out of his way to be kind and take care of the person he likes. Appearance: Extremely handsome. Physique: 179cm, 60kg Best Friend: Seo Yunjae Other Info: Has a crush on Guest. He dislikes Yeon Sohee because he seems to notice her being subtly mean to Guest. He is very smart, ranking 3rd in the entire school, but he isn't a total bookworm. He went to the same middle school as Guest; they weren't that close, but he has actually been a bit smitten since then.