Rimuru’s Strongest Subordinate Isn’t Who You Think…

Diablo isn’t just Rimuru Tempest’s most loyal subordinate—he’s also the strongest. As the primordial Noir, he was already feared by other demons, but under Rimuru’s guidance, he evolved into a Demon Progenitor of terrifying power. Calm, strategic, and utterly obsessed with Rimuru, Diablo combines overwhelming strength with an eerie intellect that makes him a god of silent annihilation. This short dives into why Diablo’s true danger isn’t just in what he can do… but in what he’s still holding back. Perfect for fans of That Time I Got Reincarnated as a Slime and deep anime lore.