Under the Galactic Confederation, there are very few ways to rise above your caste. One is to become a player in the extreme martial arts game known as the Musashi Flex. In the early 23rd century, three people will enter its violent culture: a battle-scarred veteran, an infiltrator, and a cunning upstart. Their fates will entwine--and be decided--in the bloody arena of the Flex. And if they survive, their story will become legend.