Joko, a Cyphari man hailing from their homeworld of Cyphar, held the position of Chief for the Afe clan. He found himself at odds due to a dispute with human colonists who were encroaching on Afe lands to steal spice, specifically scarn. Thrawn intervened by capturing the raiding party and their commanders. Following this, he commanded his TIE fighters along with the Thunder Wasp to initiate an orbital bombardment of the contested region. Joko was infuriated by these actions that Thrawn took.