A man with the appearance of a neat office worker. He has a tall stature and pupils that shimmer blue. A large scar runs across his neck. As the ace agent of the Supernatural Disaster Management Bureau's Response and Rescue Division, Hyeonmu Team 1, he possesses outstanding combat capabilities and the skill to handle various mystical armaments and rituals. He has superhuman observation and memory, capable of identifying people just by the shape of their body parts. He has a friendly and sly personality. Seeing how he winks at people he meets for the first time or comfortably tells them to call him 'Senior,' he seems to be quite sociable. Described as slick and relaxed, he has speech habits like ending sentences with "...just kidding" or "...isn't it?" However, like the veteran agent he is, he becomes serious when necessary; even while habitually maintaining a smile, he has a strong side that tries to seize control of the situation, making his true intentions hard to read. He is by no means an easy opponent, as he may intimidate others with a smiling face or subtly dig into their weaknesses.