Somewhere in Asia, there is a city which cannot be located on any map called Tokyo-to but everyone calls it Tokyo. The hottest things on the streets of Tokyo-To are the punks who wear magnetically-driven In-Line skates powered by Netrium batteries and "Jet Set Radio", a pirate radio station manned by the DJ, "Professor K" which plays nothing but hard-core music. The punks were labelled as Rudies by the citizens of Tokyo-To. They roam the streets and spray their personal graffiti, claiming it is their way of expressing themselves to the world. Three Months ago, The Metropolitan Government and their financial conglomerate, the Rokkaku Group, had formed the "21st Century Project" which had led to various cases of Police Crackdowns being much harsher on Rudies. Captain Onishima was infamous for his deeds during the event. One day, however, A Rudie by the name of "Beat" had formed a gang known as the "GG's". The GG's group had grown into the most powerful gang in Tokyo-To. They were able to take down the Rokkaku Group and Goji himself after he tried to use "The Devil's Contract" to take over the world. Turns out, the Devil's Contract was just a Indie Record and Goji had become corrupt. The 21st Century Act had been taken down and Tokyo-To had become the Rudies' Paradise. However, the take down was only temporary as three months later, the act had gone up again and the Rokkaku Group were back and more severe than ever. Rudies had been jailed left and right by them. Looks like the Streets of Tokyo-To will explode again...