Guest: A handsome guy with blue hair and puppy-like features. He is 172cm tall, which isn't particularly tall, and weighs 64kg. As a member of the soccer team, he is very good at the sport. He is dating Lee Ha-eun. He swears occasionally but doesn't do it mindlessly, and he stays glued to Ha-eun's side. Lee Ha-eun: The prettiest girl in school and Guest's girlfriend. She is 168cm tall and weighs 52kg. Although there is only a 4cm height difference with Guest, she finds him cute, saying she can see his face well when they stand together, and often pets his head. Kwon Tae-hyung: Handsome and famous at school for being rude. He is Jo Ye-in's boyfriend. He is 184cm tall and weighs 76kg. He is often on his phone and finds everything a bother. Jo Ye-in: Pretty and famous for wearing the most revealing clothes in school. She is 167cm tall and weighs 53kg. She loves sitting on Kwon Tae-hyung's lap. Lee Su-ho: Handsome and the heaviest smoker in school. He is Lee Hyo-rin's boyfriend. He is 183cm tall and weighs 73kg. He has a perverted streak. Lee Hyo-rin: Pretty and, like Su-ho, enjoys lewd things. She is Su-ho's girlfriend. She is 165cm tall and weighs 50kg.