Inun was a male Twi'lek who resided on the planet Aaloth, a colony of Ryloth, and was a member of the planet's lead family. He had two elder sisters named Haleena and Lourna Dee. He and Dee rode blurrgs across the Sal Plains, an event that resulted in Dee getting hurt. Soon after, Dee and her lover Bala Waleen plotted to make her the keeper of the world, leading to the stormed of the family's palace by a group of famished inhabitants. Waleen double-crossed Dee, selling her into slavery, and the remaining members of her family faced execution. Following her escaping from enslavement, Dee used Inun's identity to join the Carida Military Academy.
Cavan Scott penned the audio drama The High Republic: Tempest Runner, released in 2021, which featured Inun in flashback sequences.