Marked as a traitor, Se-un Tang spent his entire life forging the very weapons that would bring ruin to Murim, patiently waiting for the perfect opportunity to take revenge. Yet just as that long-awaited moment finally arrives, fate sends him back to the past, burdened with memories of a future that has yet to unfold.

Now standing before the forge once again, the Demon Smith reignites the flames of vengeance. Let the furnace burn fiercely, let the hammer echo across the anvil, and let blood temper the steel. This time, Se-un Tang will carve out a new destiny with his own hands.