Waruna Xida Yotno was a Covenant Hunter and bond brother to Paruto Xida Konna. The two Hunters served aboard the Covenant Reverence-class cruiser Incorruptible. They were also responsible for the safety of the Ship Master, Tano 'Inanraree. Nevertheless, when 'Inanraree was killed by Voro 'Mantakree, Waruna supported the latter's rise to Shipmaster.
Waruna then traveled with the ship from The Battle of Installation 05 and after the Great Schism to Joyous Exaltation. From there it traveled to Onyx with its bond brother. During The Battle of Onyx, it landed on the surface at the Forerunner ruins, where he fought the Spartan-IIs and Spartan-IIIs that were defending the structure. Despite injuries sustained by Paruto, it was able to continue leading the attack all the way to the Core Room Antechamber, where it was killed when Spartan-051 detonated FENRIS Nuclear Warheads in the room, preventing the Covenant from reaching Shield World.
- Halo: Ghosts of Onyx (First appearance)