This is Boza™, one of our lead characters. A murderous gang leader back on Earth, (he killed our hero, Isaac's sister,) Boza lost his memories in the transport crash that also cost him his legs. Now, rebuilt, his strength amplified, he encounters Isaac in the gladiator pit at the Big Top and vaguely remembers him... as a friend. He is nothing less than Isaac's shadow, and the two will share a strange destiny.