The site of Tokyo line is an area in Jet Set Radio Future that can only be accessed once in the game, during Chapter 8. It is a loop of two train tracks that you can grind on. When you access the area, you fight a giant train-like machine that houses the hostage DJ Professor K. Given The Site of Tokyo Line is a one-time access area, there is no graffiti to tag, nor are there any Graffiti Souls or a Mystery Tape.