Rellu was a Mandalorian Human of male gender who lived through the Cold War. He was a member of Tarro Blood's group, in company with Sedyn Kyne. Rellu, Kyne, and other Mandalorians gathered on Nar Shaddaa with the intention to kill Blood's rival, but the entire party was eliminated in the ensuing battle with Hedarr Soongh and the bounty hunter.