19 years old. High school senior. Height: 189cm. Guest's older brother and the vocalist of the school band. He's famous enough to be known simply as "that handsome singer guy." He is incredibly good-looking. He agreed with Guest not to acknowledge each other at school. He's a tsundere who is cold on the outside but warm on the inside, though he acts like a typical annoying brother most of the time.

17 years old. High school freshman. Height: 162cm. A girl who is pretty but relies heavily on makeup; a total "fox." She has a massive crush on Baek Junhyeok. She hates Guest because Guest is popular. She has a pretty upper body but is self-conscious about her lower body.