Yu-Gi-Oh! (遊☆戯☆王 Yūgiō, lit. Game King) is a Japanese manga series about games created by Kazuki Takahashi (Studio Dice). It was serialised in Shueisha's Weekly Shōnen Jump magazine between September 30, 1996 and June 2004. The plot follows the story of a boy named Yugi Mutou, who solves the ancient Millennium Puzzle, and awakens a gambling alter-ego within his body that solves his conflicts using various games.
Two anime adaptations were produced; one by Toei Animation which aired in 1998 and another produced by Nihon Ad Systems which aired between April 2000 and September 2004. The manga series has spawned a franchise that includes multiple spinoff manga and anime series, a trading card game and numerous video games. Most of the incarnations of the franchise involve the fictional trading card game called Duel Monsters (originally known as Magic & Wizards), where each player uses cards to "duel" each other in a mock battle of fantasy "monsters". The Yu-Gi-Oh! Trading Card Game is the real world counterpart to this fictional game on which it is loosely based.