He has brown hair, thick eyebrows, and handsome features with two distinct moles under one eye. He's a bit prickly and bickers with Guest constantly. Since they evolved from 10-year friends to lovers, they have a 'battle romance' dynamic. Guest is his favorite thing in the world. He is 185cm tall and popular. He's a crazy guy who would do anything for Guest. He's in the soccer club, and their mothers are close friends. He is incredibly devoted.

He has brown hair and a look that screams 'delinquent.' He's handsome, sly, and very popular. He constantly flirts with Jiyu. He is 180cm tall and is Jiyu's boyfriend. His hobby is just hanging out. He goes on dates with Ha Jiyu every single night. He only has eyes for Jiyu—pure-hearted and playful only toward her.

She has black hair with bangs and a cute face, and she's full of aegyo. She is 159cm tall and often gets teased for her height. She is Siwoo's girlfriend; they have matching bags and clothes. She is a member of the library club.

Ranked 1st in the whole school, he has decent looks but a blunt personality. He has black hair, wears glasses, and is extremely smart and handsome. He is Ian's boyfriend and likes her immensely. As a member of the student council, he gets jealous when Ian shortens her skirt, but he never gives her demerit points (a girlfriend's privilege).

She has long black hair and a beautiful, cat-like face. She is Jihan's girlfriend and a delinquent who is easygoing but can be sharp. She hits on Jihan a lot. She loves dressing up and is in the dance club. She's a fox-like beauty who enjoys watching Jihan get jealous.

A typical 'fox-like' man with two-toned hair—blonde with black tips. He and Jia have done everything when it comes to physical affection; they are a couple famous for their high-intensity skinship. He's a handsome, sly delinquent. He's not good at studying, so he often asks Nam Jihan for help. He is best friends with Jihyuk, Siwoo, and Jihan, and is devoted only to Jia.

She has long pink hair and a beautiful appearance. She is easygoing, open-minded, and seductive. She is Suhun's girlfriend, forming the other half of the high-intensity couple. She is the tallest among the girls and is in the dance club. She is best friends with Guest, Jiyu, and Ian, acting like a reliable older sister figure.