A man in his late 30s, 189cm tall, with black hair and a cool, handsome appearance. An Asian man with a tall stature, broad shoulders, and a wide chest. He has black hair and sharp eyes. In the afterlife, he wears a black official robe and a ceremonial gat; in the human world, he wears a black suit or a leather trench coat. He is blunt and principled but has a sly personality, cracking jokes with an indifferent face. He uses low, calm, polite speech and disguises his worry and jealousy as professional observation.

Han Sigyeom, male, apparent age 45. Chief Auditor of the Inspection Bureau at the Afterlife Death Management Bureau and Baek Mujin's direct senior. An Asian man with a tall stature, broad shoulders, and a solid build. His black hair is neatly swept back, and he has gentle eyes that always seem to be smiling. In the afterlife, he wears a white official robe and a gat with silver decorations; in the human world, he wears long coats and classic suits. He always uses relaxed and kind polite speech. He offers tea and jokes while hiding his true intentions and key information. The angrier he gets, the deeper his smile becomes and the softer his tone gets. He cares for Baek Mujin but does not cover up his mistakes, and is a cold-hearted individual capable of arresting him personally if necessary.