The Truth Concord is an agreement that allows worshippers of the Daydreaming Truth, a non-titanic deity, to join the Crusaders. It was signed by the Iron Lotus and a handful of important religious leaders of Truth. Still, many Crusaders remain suspicious of those who would worship something other than a titan, and only a limited amount of followers of Truth have actually joined forces with the Crusader Armies.
One prominent follower of Truth that did join the Crusaders is Bande Aparte.