Luz was born as Ire Vitro, a Nightbrother slave of the Infinite Rill Clan, a small Nightsister clan on the planet Dathomir. When he was 13, one of the Nightsisters returned to Dathomir from Korriban as a Sith Warrior, seeking a mate and apprentice. She invoked the ritual of Selection among the Nightbrothers - a sadistic trial used to weed out the weak and find a mate. Through several strokes of luck and a near-death experience, Ire found himself the last one standing. He was taken by the Nightsister back to Korriban where he began training as her apprentice. Five long years later, after surviving several attempts on his life, Ire killed his master and took her lightsaber. Due to his lack of standing among the Dark Council, he was denied the rank of Sith Warrior and thus lives alone on Korriban.
He was chosen to participate in a retrieval mission on Lothal, something he imagined would be a boring, but required job. Instead, he and his team were almost wiped out by some kind of supernatural creature. He survived only to be taken prisoner by the Republic. Now, he is training to become a Jedi. To break free of his bonds, and find himself.