Jet Set Radio Future is set in Tokyo-To, Japan, in 2024, where a street gang known as the GG's is fighting for control over the streets against rival gangs, as well as the big and powerful corporation known as the Rokkaku Group, led by Gouji Rokkaku. The Rokkaku Group is attempting to sieze control of Tokyo by force and convert it to a totalitarian police state. The game initially puts the player in control of YoYo, an aspiring member of the GG's, who has to pass a series of simple tests to join, essentially forming a tutorial for the player. Once this is complete, the player is free to explore Tokyo-to and start the fight against the Rokakku Group and rival gangs as either YoYo, Corn or Gum, and play as up to 21 other unlockable characters throughout the game.