Yugi Moto solves an Ancient Egyptian Puzzle and brings forth a dark and powerful alter ego. Whenever he and his friends are threatened by evil in Duel Monster Card Game, this alter ego breaks out to save them.

Ancient war between humans,spirits,mystical powers and their evil counterparts continues in a preset era ,when a young boy Yugi Moto releases the spirit of an ancient pharaoh from one of the so-called millennial artifacts.The duo forms a bond and with the help of their friends, fight evil in fights called duels to fulfill an acient prophecy.

Yuugi Mutou is a naive and lonely high school student who is fascinated by games. While staying with his grandfather, the owner of a game shop, he comes across an ancient Egyption relic known as the "Millennium Puzzle." Rumored to grant any wish to those who solve the Puzzle, Yuugi becomes determined to solve it to wish for some friends. After years of struggling, Yuugi manages to complete the puzzle and mysteriously finds that his wish has been fulfilled. Meanwhile, a new card game known as "Duel Monsters" starts rising in popularity. In this game, players called duelists fight against each other with "monsters" by using magic and trap cards to foil their opponent's plans. Yuugi quickly becomes skilled at the game and lives a peaceful life with his newfound friends. However, Yuugi's peace is short-lived. The undefeated duelist and egocentric billionaire Seto Kaiba suddenly abducts Yuugi's grandfather, forcing him to duel against the rare "Blue Eyes White Dragon'' card. Yuugi is thrown into a new world of fierce battles and the stakes continue to rise as dark forces interfere from the shadows. After unexpectedly defeating Kaiba with the help of his "other self"-the spirit of a nameless pharaoh-contained in the puzzle, he unofficially becomes the top duelist known as "The King of Games." However, this new title will attract covetousness and Yuugi will have to use all his intelligence and willpower in order to protect what he holds the dearest to him.—MAL Rewrite

A young boy named Yugi Moto solves an Ancient Egyptian Puzzle and brings forth a dark and powerful alter ego. Whenever he and his friends are threatened by evil, this alter ego breaks out of the confines of the Millenium Puzzle and challenges wrongdoers to the Shadow Games: Life or Death situations that test the true nature of human beings. Those that lose or cheat suffer serious penalties that result in losing their sanity or even their lives. Along with his friends Joey, Tristan, Téa and Miho; Yugi and his dark counterpart faces off against foes such as Seto Kaiba: The ruthless champion of the duel monsters card game; and Ryo Bakura, who possesses the Millenium Ring containing a spirit more brutal than Yami Yugi. Will Yugi and his friends succeed or will they lose their souls?—payback1017