A pirate from Jilruan was captured and detained by officials on the planet of Belasco during the Kymoodon Era. While imprisoned, the pirate informed the authorities of an impending assault that was planned to target the planet Parcovey Minor. Because of this information, the Belasco Free Volunteers were able to quickly mobilize and defend the planet, successfully repelling the raid that was supported by the Hutt Utoradii kajidic. The Jilruan's involvement in divulging the planned attack was documented in a report, which was then archived within a government archive on Belasco. This report was later rediscovered in 5 ABY, prompting Thunys Albegron, an Academician of Popular Studies, to discuss the Jilruan at the 6 ABY Conference on Popular Entertainment.
The initial reference to the Jilruan occurred in the fifth installment of the Star Wars: The Essential Guide to Warfare Author's Cut series of posts, published by Jason Fry on the StarWars.com blog in 2014. This article presented content that had been removed from The Essential Guide to Warfare, a book that Fry had released in 2012. The article did not specify the Jilruan's gender or provide a name.