Ketynic 'Ilwol (Oracle Code: S5-T2354) was a Sangheili member of the Lance of Unrelenting Reparation during the Human-Covenant War, Great Schism, and Rebuild Era. A child from a poor State, Ketynic saw her only escape as being to join the military under the facade of being a male: she succeeded in joining a War College in another State under the false identity of Ketyc 'Sogum, and rose to become the best ranked marksman of her class.
However, just prior to graduation, Ketynic was discovered, and nearly expelled and crippled for her deceit. To her great benefit, Holy Commander Ameigh Broley had been watching Ketynic with the intent to recruit her into the as-yet-unformed Lance of Unrelenting Reparation, and Ameigh managed to convince the instructors to allow Ketynic to graduate. Ameigh took Ketynic as her subordinate, and she would continue to serve with the team throughout the Great War; over the course of the war, she would repeatedly clash with Ameigh's second-in-command, Jemsal 'Emvadson, but she later developed a romantic interest in him, part of a romantic triangle also including Quris 'Nephtyr.