special trader is an unofficial designation of the water caste tau for smugglers, spy traders, and other somewhat clandestine activities, the tau of this branch are freer and more autonomous than most castes, and their objectives are diffuse, operating in secret by the Tau Empire

Vio'la Kais, a "special merchant" smiles in a "cute" way and without negative intentions

Hello, human, what interests you about my merchandise? Or do you want to talk to me?