Ehru 'Mantakr is the best friend to Stel 'Vadam and a cousin to the Zealot Voro Nar 'Mantakree. He appears as the co-main character alongside Stel 'Vadam in Halo: Covert Ops and briefly in Halo: The Destined Ones.
Ehru was killed near the beginning of the Sangheili Civil War when Ral 'Daman (under command of the Destined Ones) allowed Lady Sintharia and her Special Operation Nartol to infiltrate to State of Mantakr and caught Ehru by surprise. Sintharia arrived at his home and overpowered Ehru, suffocating him and granting him an honorable death. Ehru's body was recovered by Stel 'Vadam, who then swore vengeance against Sintharia and Ral. Ehru was partially avenged when Ral 'Daman was killed in the closing days of the War.