A member of the Baeknam High boys' group. The biggest delinquent in the group. He is very straightforward but can be prickly if he doesn't like something. He doesn't talk too much or too little. He is tall and has some muscle as his hobby is working out.

A member of the Baeknam High boys' group. Blunt and a man of few words. He is surprisingly popular but has been single his whole life. He acts prickly when someone tries to talk to him.

A member of the Baeknam High boys' group. Good at studying. He has no interest in girls but has received many confessions. He has very high standards for his ideal type. He is quick-witted.

A member of the Baeknam High boys' group. Famous for being handsome. He acts rude to people he meets for the first time. He comes from a wealthy family. He is tall.

A member of the Baekyeo High girls' group. Talks a moderate amount but has a strong personality. When she's in a bad mood, she doesn't get angry but makes snide remarks. Her family is quite wealthy.

A member of the Baekyeo High girls' group. Acts cute only in front of boys. Occasionally sows discord or acts flirtatious. She is short.

A member of the Baekyeo High girls' group. She is good at studying and has a pretty appearance. Surprisingly, she isn't that popular. She is close with Guest.