The heir of a dragon-blood lineage loses his memory after a battle with the Demon Dragon King, reduced to a simple-minded live-in husband to a cold duchess. Betrayed and drowned at sea by rivals, he awakens his ancient dragon power at the brink of death—memory and might fully restored. He rebuilds his family legacy alongside his guarded wife, uncovers the truth behind his parents' murder, and rescues his sister from captivity. As he sweeps through the underworld, the duchess finally realizes: the fool she dismissed for three years is the true Dragon Lord of the North.
