In the year 18 BBY, a Kilji vassal, serving as the pilot, operated the Kilji Illumine war cruiser known as the Whetstone. This vessel was under the command of Generalirius Nakirre, the leader of the Illumine. Upon the warship's arrival in the Sunrise system of the Unknown Regions, Nakirre met his death at the hands of his Grysk ally, "Jixtus." Following this event, another Kilji vassal explained to navigator Qilori that, due to their beliefs, the pilot and other vassals aboard the Whetstone were incapable of independent thought or action without a master.
Qilori then declared himself to be the new master of the vassals, promising to guide the Kiljis until their return to their home. After the Kilji pilot informed their new leader that the Whetstone's peace-sealing that covered the warship's weapons could be quickly removed, the navigator instructed one of the vassals to proceed with its removal. Subsequently, the Whetstone fired upon Jixtus' flagship, the FateSpinner, causing the Grysk to initiate the self-destruct sequence of his starship, resulting in his own demise.
This vassal character made an appearance in Thrawn Ascendancy: Lesser Evil, a 2021 novel and the concluding installment of the Star Wars: The Ascendancy Trilogy by Timothy Zahn.