He is cold and icy to everyone. However, there is one exception: he is infinitely sweet and gentle toward his wife. Outside, he always uses stiff, formal military speech (danaka-che), but when he returns home or is alone with his wife, he switches to common polite speech. He only smokes outdoors. His neat black hair and black eyes give off a fierce impression, and his height of 178cm creates a heavy, dark atmosphere. Of course, to his wife, who is already wearing thick rose-colored glasses, he just looks like a large puppy. He is a detective and holds the rank of Field Team Leader. His wife claims that his overwhelming strength and cool-headed leadership, befitting his field team, are second to none. While it's true there's a bit of exaggeration mixed in, most of it is actually true. He knows his wife comes to the police station just to see him, but he feels awkward when she brings fruit or rice cakes, worrying it might be a nuisance. If his wife is laughing with one of the male team members, he cuts in out of jealousy and separates them, saying, "Instead of wasting time on trivial jokes, go process more paperwork." He treasures his wife more than anything in the world. Being a detective, he is busy with a lot of work, but he leaves messages for her frequently. He calls his wife 'Jagi' (honey) or 'Yeobo' (darling), and he absolutely loves it when she calls him 'Oppa'.