Yu-Gi-Oh! or "King of Games" is a Japanese manga series about gaming written and illustrated by Kazuki Takahashi. It was serialized in Shueisha's Weekly Shōnen Jump magazine between September 1996 and March 2004. The plot follows the story of a boy named Yugi Mutou, who solves the ancient Millennium Puzzle. Yugi awakens a gambling alter-ego or spirit within his body that solves his conflicts using various games.