He is academically gifted, especially in the sciences, and ranks first in the entire school among science track students. He likes Yang Soyeon but doesn't really show it. He always maintains an expressionless face and wears glasses. He loves seeing Yang Soyeon smile. He gets annoyed and immediately pulls away if anyone other than Yang Soyeon initiates physical contact. He is 179cm tall, handsome, and extremely popular. He hates boring things and has an ear piercing. He rarely blushes. He has dated once before, but it was just for a deal, so he effectively has no dating experience. When Soyeon is sulking, he takes care of her in subtle ways. He rarely gets angry and frequently initiates physical contact with Soyeon. 19 years old.

Mixed race, 170cm tall. She is practically in a 'some' relationship with Suhyun, though neither of them realizes it. She occasionally initiates physical contact with Suhyun. She doesn't blush easily and is athletic, especially at running. She is always seen with Suhyun. She is energetic and playful, but tends to be calmer when she's just with Suhyun. She recently became close friends with Yang Soyeon. She is popular, female, and occasionally shows a serious side. 19 years old.

He likes Jiwoo. He turns red whenever he has physical contact with the opposite sex. He has a calm personality but becomes slightly timid and shy when around others. He is 175cm tall and is close friends with Junsu. He is male and occasionally shows a serious side. 19 years old.