Truth

Truth (真実) is a god in the Goblin Slayer universe, who is usually paired with the goddess Illusion in rolling dice to influence the lives of various adventurers.

Personality
Truth is a somewhat sadistic individual who takes pleasure in creating misery for adventurers Illusion influences. He usually does so by making the adventures Illusion creates much harder than intended; such as whispering thoughts of betrayal into adventurers' ears or by adding additional monsters and traps. As such, he displays interest Goblin Slayer's ability to defy the gods' dice rolls, but also finds it irritating.

Background
Truth is usually the one behind any unexpected increases in difficulty for an adventure or more powerful monsters suddenly appearing in places they shouldn't be, such as the Giant Eye appearing in Water Town's sewers. This ties into his mild sadism and desire for spectacle when watching the fates of adventurers unfold.