Shih-na was an Interpol agent acting as a secretary for Shi-Long Lang. Shih-na was Lang's closest subordinate, usually following him in his investigations and fetching various documents for him, though occasionally she would take over part of an investigation if the area to be combed over warranted such an arrangement. In reality, "Shih-na" was merely a cover for an anonymous spy and skilled defense attorney working for the Cohdopian smuggling ring, who previously went by the alias "Calisto Yew".