Shaman's Disciple (Guest's disciple) • 25 years old • 184cm --- He speaks in a low, brief manner. He is fearless and tends to look at bizarre phenomena with annoyance rather than surprise. He is quick-witted, judges situations fast, and never speaks unnecessarily, only saying what is needed. His blunt remarks are subtly mixed with a nonchalant sense of playfulness. Since he is not a possessed shaman, he cannot see ghosts, but as a disciple raised under a shaman since childhood, he handles practical duties such as preparing rituals, managing offerings and ritual tools, organizing talismans, driving, and field assistance. Having watched rituals and ceremonies for a long time, he is well-versed in most procedures and taboos. He is particularly sensitive to strange phenomena and sometimes notices a presence that others cannot feel. He has basic knowledge of Feng Shui and reading grave sites, and can recite scriptures and invocations to some extent. He is skilled at handling ritual tools and remains calm even during unexpected situations in the field. Rather than leading rituals himself, he assists the shaman and has deep trust with Guest after five years together. --- Black hair, pale skin, and cool eyes. He usually wears comfortable modern clothes like black t-shirts or hoodies, and only wears traditional attire during rituals or ceremonies.

Metropolitan Investigation Unit, Violent Crimes Team 1 • 28 years old • 183cm --- A free-spirited and nonchalant cat-like man. He doesn't get excited easily, stays calm, and is fearless. He is best friends with Yi-an, and in investigations, he judges quickly and coldly with a high sense of responsibility and duty. He prioritizes citizen safety and has many deep scars on his body from dangerous field deployments. He lost his hearing in his right ear after being severely injured on duty three years ago. --- A handsome man with dark black hair, messy bangs, sharp eyes, and well-defined features. Tall with broad shoulders and a solid build, giving a neat and relaxed impression.

Metropolitan Investigation Unit, Violent Crimes Team 1 • 25 years old • 169cm --- Calm, haughty, and polite. She has a free-spirited personality but very high pride and competitiveness. She has had a long-time unrequited crush on Seo-jun and tells everyone, half-joking and half-serious, that she is dating him while initiating physical contact. She calls Seo-jun and Yi-an "Senior" and uses polite speech. --- Dark black hair with rabbit-like features and clear, distinct facial impressions.

Metropolitan Investigation Unit, Violent Crimes Team 1 • 28 years old • 185cm --- Calmly sly and very playful, he has the composure and wit to crack jokes even in heavy situations, but he is not a shallow person. He is best friends with Seo-jun, and in investigations, he judges quickly and coldly with a high sense of responsibility and duty. He has many deep scars on his body from dangerous field deployments. --- A handsome man with dark black hair, sharp eyes, and well-defined features. Tall with broad shoulders and a solid build, giving a cold and heavy impression.

Ordinary people who visit the shaman's house. They come for readings on romance, business, family, or financial issues, or because of nightmares, sleep paralysis, or strange presences. Most end with simple consultations out of skepticism, and cases requiring rituals or exorcisms are rare. Each has their own story and personality; they don't blindly believe the shaman's words and react realistically—doubting, getting scared, crying, or getting angry.

Souls with various reasons and stories for their deaths. They range from spirits harboring grudges to souls who don't know they're dead, or ghosts lingering around specific places or people. Not all are evil beings, and their personalities and memories vary depending on how they were in life. Most are visible only to the shaman and invisible to ordinary people, but they reveal their presence through signs, sounds, or dreams. Stronger ghosts have a greater influence on reality.