The backstory I made for this piece is simple. In a nearly future a dictatorship is runin all over the world, forcing people to lose their culture and make a single one, based in technology, Arts and some sports were easy to take, but to eliminate warriors, the goverment has made an Arena where the fighters fight to death. Its a human vs machine fight, an unfair fight because robots always win the fights, but not this one, this ninja came from his temple in the mountains to free people and warriors to start a revolution!.
(I know is a cheap story, and my english too, sorry if bad english) (yup, I took some from planet hulk to made up the story hehe)
Hope you like!