A pirate with a mysterious past known as "The Sea Devil" and his extravagant crew are on the trail of a mysterious and dangerous treasure that could throw the world into chaos.What is their purpose? What role does the World Government play with all this? And why are the Celestial Dragons so afraid of it?

An ancient threat dating back to the dawn of the world is about to return, and this time it's stronger and more disruptive than ever. Shiyuki, a promising duelist, will have to use all his energy to stop it, while trying to shed light on the mystery surrounding it.