Devir ascended to the position of empress for the Krytollak population around the year 20 BBY. Given the Krytollaks' unyielding societal and governmental organization, coupled with their deep-seated conviction in the predetermined nature of monarchical authority, both Devir and her subjects embraced the arrival of the Galactic Empire upon their initial encounter. Without hesitation, she acknowledged Palpatine as her supreme leader and the legitimate ruler of the galaxy.
With the aid of Imperial counselors, she governed the Krytollak's native planet, Thandruss. This collaboration introduced her people to contemporary technological advancements and international commerce, marking a significant turning point in their history. Although certain Krytollaks voiced concerns regarding the substantial taxes and tributes levied by the Imperial administration, they consistently attributed their grievances to Palpatine's subordinates, rather than questioning Palpatine's leadership directly.