Biz is one half of the small group known as the Sirga Twins of Shogun, being the twin brother of Giz. Because he is three seconds younger than his twin, Giz always tries to establish dominance over him which Biz doesn't allow easily and the two often fight because of this. His motivation for becoming a pirate is to gain enough notoriety around the galaxy to mate with Sirga females on Predin to help repopulate.