An Evereni individual of male sex was the paternal ancestor of the Evereni Asgar Ro, existing during the time of the High Republic Era. This individual was a pirate within the Nihil group. In 252 BBY, Asgar's paternal ancestor departed from both the family and the Nihil, doing so to maintain the fear of the Evereni species throughout the galaxy.
During that period, Asgar found himself on the Nihil flagship, the Gaze Electric, where he engaged in a disagreement with his parent, Shalla Ro, regarding their contrasting visions for the Nihil. Shalla proposed that her son should emulate his father and grandfather by leaving, with the aim of preserving the fear of their species across the galaxy. Following her suggestion that Asgar commit some murders, he concurred with the idea and eliminated her by shoving her from a platform.
The grandfather of Asgar Ro was referenced in flashback sequences within the inaugural edition of the Star Wars: The High Republic: Eye of the Storm comic miniseries from 2022, which was launched as a component of Phase I of the Star Wars: The High Republic multimedia endeavor. Charles Soule authored the edition, and Marvel Comics released it on January 12, 2022.