The Astral Rune Knights, subordinate to the Demon Hunting Agency, featured four Grand Knights corresponding to the four great natural disasters: Pestilence, War, Famine, and Death.
Kyle was none other than the Knight of Pestilence.
In addition to standard anti-magic materials, Kyle's battle armor was equipped with demon-slaying weapons that only a Grand Knight was qualified to bear: a lance and a shield.
Chapter 120