Perrin was a member of the human species, fulfilling the role of a junior ensign within the Imperial Navy. She was stationed on the Inflictor, an Imperial-class Star Destroyer. Following the Battle of Endor, Perrin, along with her fellow adolescent cadets, were prematurely promoted to junior officers due to the circumstances. During the subsequent Battle of Jakku, the Inflictor sustained significant damage and was infiltrated by New Republic forces, prompting the captain, Ciena Ree, to command the activation of the ship's self-destruct mechanism. Despite Perrin's voiced reservations, the captain reassured her that the crew would successfully reach the escape pods and await rescue by the nearest Imperial vessel. Perrin herself was responsible for starting the self-destruction sequence, only to find that the New Republic boarding team had deactivated it. Knowing that the Inflictor could not be allowed to fall into enemy hands, Captain Ree instructed Perrin and the rest of the crew to evacuate to their escape pod, and then steered the Star Destroyer directly into Jakku, intending to destroy the ship by crashing it into the planet.