Tenth-grader Yugi always had his head in some game--until he solved the Millennium Puzzle, an Egyptian artifact containing the spirit of a master gambler from the age of the pharoahs! Possessed by the puzzle, Yugi becomes Yu-Gi-Oh, the King of Games, and challenges evildoers to the Shadow Games...weird games with high stakes and high risks!

In the ruins of Kul Elna, the village wherein the Millennium Items were made, Bakura prepares to complete a ritual that will unleash Necrophades...in the modern world! But if Yu-Gi-Oh changes the past, will the present change too, or is something stranger than time travel at work?