Huang is a supporting character in Darker than Black: Kuro no Keiyakusha and serves as the handler and field supervisor for the team operating under the Syndicate. Practical, sharp-tongued, and often impatient, he acts as a middleman between higher-ups and the operatives in the field. He is not a Contractor, but he plays an important role in coordinating missions, gathering intelligence, and keeping operations moving. His presence adds tension, realism, and a sense of bureaucratic pressure to the series.