Adion Lang, a male Human hailing from Lankashiir, held the rank of Lieutenant within the Imperial Security Bureau during the era of the Galactic Civil War.
During the year 0 BBY, he found himself aboard the Kuari Princess with the mission of monitoring and potentially apprehending Detien Kaileel, who was providing arms to the Rebellion. It was there that he encountered Celia Durasha, a former friend and romantic partner whom he hadn't seen for a period of seven years. As she attempted to flee the Princess alongside Kaileel, Adion intervened, fatally wounding Kaileel. However, he failed to prevent Celia's escape and sustained multiple cuts from a vibroknife that had been gifted to her by her deceased twin.