In ancient times the spirit world and the human world existed as one protected by people known as the Duel Priests , they are known as the guardians. Then calamity struck destroying the world and faded into darkness. It was then rebuild through the hearts of the guardians but the single world was split into 2 halves. when brought together they can awaken the Ultimate God
The 12 spirits are split among the elements of light and darkness. They are said to be cards specifically designed for Turbo Duel rituals in ancient times.
The light spirits are known as signer dragons , they linked to people called signers. The signers all process a mark of the dragon. The dark spirits possess a massive dark power known as ( duel dragons ) , they are strong enough to control their own holders if they are unable to tame them. A man who holds a "Duel Dragon" becomes a Duel Priest, while a woman becomes a Duel Priestess. The cards are also blank until after they obtain a holder.
In Neo Domino city , in the year 20XX , riding duels fought from the seats of motorcycle shaped duel disks called duel runners also known as a D-Wheel , are the hottest trend in town.
