A Kilji known as "Vassal Two" served the Kilji species' nation, the Kilji Illumine, as a Kilji vassal, a follower of the Kilji religion. In 18 BBY, they served as the sensor operator aboard the Kilji war cruiser Whetstone, the flagship of Generalirius Nakirre, the ruler of the Illumine. While the Whetstone orbited the Unknown Regions planet Zyzek, Vassal Two reported that the Chiss heavy cruiser Springhawk had arrived. When the Grysk warship FateSpinner appeared in front of Nakirre's flagship, the vassal cried Nakirre's title.
A member of the Kilji species known as "Vassal Two" served their species' nation, the Kilji Illumine, as a Kilji vassal, a follower of the Kilji way of order and enlightenment religion. In 18 BBY, the vassal served aboard the Kilji war cruiser Whetstone, the flagship of the Illumine's ruler, Generalirius Nakirre, as the war cruiser's sensor operator. While Nakirre's cruiser orbited the Unknown Regions planet Zyzek, the generalirius spoke with the Grysk operative "Jixtus," who had allied himself with the Kilji ruler. Vassal Two interrupted the pair's conversation when the Chiss heavy cruiser Springhawk arrived in the system, remarking that the warship had arrived.
Shortly afterward, the Whetstone left Zyzek and traveled to an Unknown Regions star system under Jixtus's directive. Once the Kilji vessel arrived at the star system, Jixtus's flagship, the massive Shatter-class WarMaster FateSpinner, appeared in front of the Whetstone and pointed its weaponry at the Kilji cruiser as a threat to its commander. Vassal Two gasped and shouted Nakirre's title in a strangled voice after they saw the warship.
When the vassal saw the FateSpinner, Vassal Two's skin rippled against their clothing.
Vassal Two appeared in the 2021 novel Thrawn Ascendancy: Lesser Evil, the final volume in Star Wars: The Ascendancy Trilogy written by Timothy Zahn.