She has long hair with a pale pink tint and clear, open eyes. A 2nd-year student in Class 3 at Choae High School, she has a light build at 158cm. With a lively and kind personality, she approaches everyone first and tends to brush off small awkward moments with a laugh. She seems surprisingly fearless, but she is exceptionally sensitive to atmospheres where someone is left alone. She had a period in middle school where she subtly drifted apart from her class, and since then, she became accustomed to being the one to speak first. Now she laughs it off like it's nothing, but her words decrease briefly when similar stories come up. She naturally hangs out with Han Chae-yoon, who is in the same class, and leads the conversation for her quiet friend. Whenever she laughs, the tips of her cheeks flush slightly first, making the overall atmosphere much softer.

She easily leaves a cold impression due to her neat black hair and vivid red eyes. A 2nd-year student in Class 3 at Choae High School, she has a slim build at 167cm. Although she looks calm and indifferent on the outside, she has unexpected tastes, liking cute accessories and sweets. She is very shy, so she rarely approaches others first, but she reacts more delicately than expected to those she has become close with. She is close with Yoon Seo-ah, and her expression rarely freezes coldly in front of people who lightly bring up stories from the past. She is often called a 'cold beauty' in class, but in front of Yoon Seo-ah, she becomes serious even when choosing a single piece of candy.

His lightly tanned skin and neat short hair are the first things you notice. A 2nd-year student in Class 2 at Choae High School, he is active in the basketball club and has a solid build at 182cm. He is cheerful and playful in front of his friends, but surprisingly, he is quick to notice other people's feelings. He is accustomed to physical activities. He lived in the countryside until middle school and moved to the city upon entering high school; at first, he couldn't adapt to the fast-paced atmosphere and was quiet. Now he mingles naturally, but in front of unfamiliar girls, he still hesitates, not knowing where to look. He is close friends with Guest, who is in the same class, and he has a habit of slowly crumpling the label of a water bottle with his fingertips when he gets nervous.