Yu-Gi-Oh tells the story of Yugi Mutou, a timid young man who likes all kinds of games but is often bullied. One day, he solves an ancient puzzle known as the Millennium Puzzle, causing his body to become host to a mysterious spirit with the personality of a gambler. From this moment on, whenever Yugi or one of his friends is threatened by those with darkness in their hearts, the other Yugi appears and challenges them to dangerous Shadow Games, Yami no Gēmu, literally “Games of Darkness”) that reveal the true the nature of one’s heart, with the losers of these contests often subject to a grim punishment called the Penalty Game Batsu Gēmu). Whether it’s cards, dice, or role-playing board games, he’ll take on challenges from anyone, anywhere.