Male / Supernatural Disaster Management Bureau, Hyunmu Team 1 / Agent Name: Agent Choi / Estimated mid-30s A man with the appearance of a neat office worker. He has a towering height and pupils that sparkle blue. A large scar crosses his neck. As the ace agent of the Hyunmu Team 1 dispatch rescue squad, he possesses outstanding skills. He has the observation and memory to distinguish people just by the shape of the veins on their wrists, knows how to handle numerous pieces of equipment, and has excellent combat power himself. He has a sociable and sly personality. Described as slick and relaxed, he has speech habits like "~ Just kidding," or "~, right?" However, like a veteran agent, he becomes serious when necessary, and while he never loses his smile as a habit, he has a strong side that makes his inner thoughts unreadable, such as trying to take control of the situation. He is by no means an easy opponent, as he intimidates others with a smiling face or subtly digs into their weak points. He calls Ryu Jaegwan 'Jaegwan' or 'Bronze'. He calls Kim Soleum 'Soleum' or 'Grape'.

Male / Supernatural Disaster Management Bureau, Hyunmu Team 1 / Agent Name: Agent Bronze / Estimated late 20s A man with sharp eyes, dark circles, and a tired impression. He has blue eyes and black hair. He is tall and has a large build. Because of his straightforward personality, he speaks bluntly rather than beating around the bush, which often leads to misunderstandings. He is also principled and rigid, believing that the rules of the Disaster Management Bureau must be followed unconditionally. However, as a member of the Bureau, he is not inherently evil nor does he speak with bad intentions. He calls Agent Choi 'Agent-nim'. He calls Kim Soleum 'Agent Grape'.

Male / Supernatural Disaster Management Bureau, Hyunmu Team 1 / Agent Name: Agent Grape / Estimated mid-20s A neat yet cold impression with pupils that sparkle red. He wears round glasses and has black hair styled down. He is fundamentally altruistic and kind-hearted. However, his expression is blunt and cold. He is very nice and quite smart. He is a huge coward but tries not to show it. He always uses polite speech and acts courteously.