Seventeen years prior, a reactor called Moment within the city malfunctioned and caused a great earthquake that split the city in two parts: Satellite, the rundown and poverty-stricken part (also the former Domino City), and Neo Domino City, the wealthier and urban part. In order to keep the two areas separate, access to the city from the Satellite is strictly prohibited and can result in imprisonment. Yusei Fudo, an aspiring duelist from Satellite, builds his own Duel Runner.