Star Wars: Every Sith Who Turned To The Light Side

Shortly after Gav Daragon and his sister, Jori, began their Jedi training, their parents suddenly died, causing them to inherit their father's hyperspace ship. After Gav found himself owing money to a few creditors, he and his sister escaped their homeworld by using their ship to jump into hyperspace.

When they exited hyperspace, they landed in the Sith Empire, where they were taken in by the Sith Lord Naga Sadow. Naga had great faith in Gav, allowing him to lead an army against Coruscant and Koros Major.

After Gav's actions indirectly led to the death of an old friend, Jori told her brother she could never forgive him. In that moment, Gav relinquished his loyalty to the Sith. When Naga learned of this, he had his former apprentice killed. Just before he died, Gav sent the Sith Empire's co-ordinates to the Koros military, who used the intel to destroy Naga's forces, decimating their numbers.