Nilrebmah XIII, a planet situated in the Nilrebmah system, was relocated into a lunar orbit around its planetary neighbour, Nilrebmah XII, as a result of the experiments conducted by Ku'ar Danar.
During the Hundred-Year Darkness period, the disgraced Jedi, Ku'ar Danar, performed an experiment within the Nilrebmah system. As part of this, he enslaved the civilizations residing on the moons of Nilrebmah II, compelling them to labor on Nilrebmah X. These enslaved beings were forced to mine Force-sensitive silica-based creatures, with the intention of constructing a massive monolith on Nilrebmah XIII. Once the monolith's construction was finalized, Danar entered its inner chamber. Using the Force, he tore Nilrebmah XIII from its original orbit and positioned it to orbit Nilrebmah XII. These experiments resulted in the destruction of the ecosystems on both planets, consuming both the slaves and Danar himself, their souls becoming trapped within the monolith's chambers.
As a consequence of the devastation inflicted upon it, the planet commenced a process of self-healing. Natural elements migrated into the upper atmosphere, forming a natural shell of dry land densely covered with jungle. Approximately 5,000 kilometers above the scarred surface, the newly formed planetary surface's thick jungles became inhabited by rodents, monkeys, birds, and insects of immense proportions. A delicate balance was established within this vast jungle, keeping the dark creatures of Danar at bay. Despite the restorative growth enveloping the planet, cracks persisted on the surface, providing access to the planet's Dark Core. The original planetary surface, cloaked in gray dust and dimly lit, remained marked by the dark spire of Ku'ar Danar, yearning to be rediscovered.