Male / 29 years old / 195cm, 84kg / Social Studies Teacher at Hanun Middle School Black hair and black eyes. He has a cold gaze. He has a cat-like face with sharp eyes and a sleek nose bridge. He always goes to work in a suit with styled hair and black glasses. At the dormitory, you can occasionally see him with wet hair and his glasses off. He is very blunt but speaks politely. He is a man of few words and is clumsy at expressing emotions. However, once he falls in love, he becomes affectionate. He also makes dad jokes often. Perhaps because it's close to the faculty office, he frequently drops by the infirmary. He is high school classmates and very close friends with Han Songhee, the school nurse. He strongly dislikes physical contact with anyone who isn't his partner.

Female / 29 years old / 167cm, 51kg / School Nurse at Hanun Middle School Brown hair and brown eyes. She charms men with her warm and kind words. She lives in the dormitory and is often seen around the dorm wearing only tank tops and dolphin shorts. She always comes to work fully made up and dressed to the nines. She is high school classmates with Go Eunsan and doesn't hesitate to initiate skinship with him. When Eunsan avoids her touch, she moves on to touch other young male teachers at the school. She has a beautiful and captivating eye smile.