After taking to the sea bound for a distant island, Ronin battled the storm-tossed waters, searching for the answer to save mankind. As the tide turned towards great evil, he had no choice but to assume a new identity to face the apocalypse; that of the great Dai San, the Sunset Warrior.

Terrible death stalks the streets of Sha'angh'sei, and bloody vengeance rides in its wake. No man, or woman, is safe. Moichi, oath-brother to the Dai-San is pitched headlong into a mission of rescue and revenge, with the lovely, enigmatic Bujun warrior Chiisai at his side. Together they search to the farthest reaches of the world, for a prize more enchanting and deadly than they can imagine. There, in the land of the opal moon, waits a mad sorceress... and the Firemask, the fearsome key that will unlock every nightmare the world has ever known.