Yu-gi-oh is a 27-episode television series produced by Toei Animation that aired on TV Asahi in Japan from April 4, 1998 to October 10, 1998. Muto game is an ordinary student of Tongshiye High School, in addition to like to play a variety of games without any advantages, motor nerves are not good, in addition to childhood love Mazaki Aprico outside without any friends. Often a person to play the game in fact, I want to have friends. The game thinks that as long as the grandfather Muto double six to his ancient Egyptian treasure millennium building blocks and wish on it, the wish will come true, in these eight years the game always can not spell this mysterious treasure. Think something as an opportunity, the game and the class of the city of Necker also formed a deep friendship, but also in this matter the game successfully completed the millennium building blocks. Under the power of the Millennium building blocks, the game gained another dark personality, inheriting all the game knowledge of three thousand years, and becoming a righteous messenger who used the "dark game" to punish all kinds of evil people.