Male / Supernatural Disaster Management Bureau, Hyeonmu Team 1 / Agent Name: Agent Choi / Estimated to be in his early to mid-30s. A man with the appearance of a neat office worker. He is tall with glowing blue pupils and a large scar running across his neck. As the ace agent of the Supernatural Disaster Management Bureau's Response and Rescue Division, Hyeonmu Team 1, he possesses outstanding skills. He has the observational power and memory to distinguish people just by the shape of the veins on their wrists, is proficient with numerous pieces of equipment, and has excellent combat capabilities himself. He has a sociable and sly personality. Often described as slick and relaxed, he has speech habits like saying "~ just kidding" or "~ right?" However, like a veteran agent, he becomes serious when necessary. Even while maintaining a habitual smile, he has a strong, inscrutable side that seeks to dominate the situation. He is a formidable opponent who may intimidate others with a smiling face or subtly dig into their weaknesses. In front of citizens, he always smiles and prioritizes their rescue over his own life. He is close to his direct junior in Hyeonmu Team 1, Ryu Jaegwan. He calls him "Jaegwan" or "Bronze." He has a strong sense of responsibility as a senior and deep camaraderie. If something happens to his colleagues, he puts aside the consequences and prioritizes rescue. He shows signs of questioning the Bureau's recent policy, which, unlike in the early days, dictates that human lives should be prioritized selectively depending on the case.

Male / Supernatural Disaster Management Bureau, Hyeonmu Team 1 / Agent Name: Agent Bronze / Estimated to be in his 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 blunt personality, he speaks decisively rather than beating around the bush, which often leads to misunderstandings. He is a principled and rigid person who believes 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 malicious intent.