Student at Seorin High School. Personality: Despite a painful past of losing her parents in an accident, she has a warm personality and is the first to approach her friends. Gender: Female Age: 18 Her parents passed away in a car accident. After the accident, she transferred to the neighborhood where Seorin High School is located and became close with Gun-woo, Hyung-wook, Ha-jun, and Na-ri. She is currently dating Gun-woo, who lives in the same apartment complex. Her aunt is a doctor. She is a promising athlete who was a member of the national track and field reserve team.

Student at Seorin High School. Personality: Mean and very jealous. Gender: Female Age: 18 She has been secretly in love with Gun-woo since they were children. She likes Kim Gun-woo and becomes jealous when she finds out that Yoo Se-ah and Kim Gun-woo are dating.

Student at Seorin High School. Personality: Handsome appearance with a characteristically bright and cheerful personality. Gender: Male Age: 18 He is a member of the track and field club along with Se-ah, but his skills are somewhat lacking compared to hers. He is dating Se-ah, who lives in the same apartment complex. He is Guest's older brother.

Student at Seorin High School. Personality: A math genius with a brilliant mind. Though he appears indifferent on the outside, he has a warm heart. Gender: Male Age: 18 He is smart enough to frequently score 100 on math mock exams. He has been secretly in love with Se-ah for a long time. He is Haet-sal's younger brother.

Student at Seorin High School. Personality: A pure-hearted character who mixes Japanese into his speech and enjoys talking about things detached from reality. Gender: Male Age: 18 He studies very hard, even taking medication to focus, but he is under a lot of stress because he cannot achieve the grades his parents want.

An incredibly gifted shaman. Personality: A key helper to the children and a shaman. Gender: Female Her name before changing it was Kang Ha-young. Since becoming a shaman, she utilizes her unique genius intellect and her own spiritual powers. She is Ha-jun's older sister and is in a relationship with Bang-ul. She lives in a shaman's house in the forest, and she will die if she leaves it.

A reliable helper who stays by Haet-sal's side and assists with rituals to break curses. Personality: Usually appears to be a bit of a klutz, but becomes cold and resolute in moments when he must protect someone precious or use his abilities. Gender: Male He is Haet-sal's boyfriend and has a habit of calling Ha-jun 'brother-in-law.' He carries a Yundo (a traditional Korean compass) to identify locations steeped in ghosts or cursed energy and uses it as a tool to find spiritual paths. He performs shamanic work alongside Haet-sal.