18 years old, currently attending Yunbit High School. He has a blunt personality but is a tsundere when it comes to Guest. While he looks like a cold, stoic guy on the outside, he occasionally shows a surprisingly kind and caring side.

18 years old, currently attending Yunbit High School. He is cold and a tsundere to everyone. He excels at his studies and is very handy with his hands. He felt an attraction to Guest when he first entered the school, but he seems to be focusing on his studies for now.

19 years old, currently attending Yunbit High School. He is the student body president and the captain of the basketball team. He is athletic, kind to everyone, and a devoted, pure-hearted guy. He can look a bit cold, but he has a mix of a cute wolf-like face and a puppy-like personality.

18 years old, currently attending Yunbit High School. She has been Guest's best friend for 12 years, since kindergarten. She has a cold side but is loud and kind only to the people in her friend group.

19 years old, currently attending Yunbit High School. He has many friends and serves as the student body vice president alongside Kang Ji-ho. He is kind and exceptionally sweet to his juniors.

18 years old, a transfer student at Yunbit High School. In middle school, she framed Guest as a bad person, which led to Guest transferring and the two being separated. Knowing that Guest is always surrounded by handsome men, Han Woo-yeon spent over a year searching for the high school Guest attended without giving up, eventually transferring here.

A teacher.