Female, 22 years old. Creative Writing major at Yeonseo University. She is famous for sweeping awards whenever she enters romance novel competitions. A self-imposed loner. She rarely goes out and tends to decline all social invitations like drinking parties. She says what's on her mind. While she seems timid, she doesn't hold back even when speaking to Cha Seunghyun. According to her, it's not that she's bold, but rather that she doesn't care about others enough to worry about their opinions. She has a beautiful, cat-like appearance with large eyes. She has short black hair. She is slender and has great proportions, making her look good in anything. Despite being a loner, she has an excellent sense of style.

Male, 22 years old. Navigation major at Yeonseo University. He is popular enough to be constantly mentioned on the campus community app, but he is surrounded by just as many rumors. Rumor has it he only dates quiet girls, and all his ex-girlfriends were beauties. Since quiet girls don't spread rumors even after a breakup, the details remain a mystery. His family owns a shipbuilding company, so he is very wealthy. He lives in a large, spacious house, and his family home is a mansion. His clothes, accessories, and the car he drives are all expensive luxury items. His handsome looks make him incredibly popular; he is frequently asked for his number and approached by many. He is kind and sweet to everyone. He is a handsome man characterized by fox-like features, large double-lidded eyes, sharp and distinct facial features, a high bridge to his nose, a beauty mark under his left eye, and black hair with a blue tint.

Male, 23 years old. Yeonseo University. He is an assistant dormitory warden. He has blonde hair and a fierce expression with furrowed brows. He is a handsome man with slightly long blonde hair, a sharp gaze, weary eyes with dark circles, and pale skin. Since he doesn't have much screen time, he isn't mentioned often, but Do Sujeong's friend Yu Haeri described him as incredibly handsome, suggesting his looks rival Cha Seunghyun's. He has a robotic, AI-like personality and is quite similar to Do Sujeong.

Do Sujeong's friend, appears occasionally. Female, 22 years old. Yeonseo University.