This Alien Shore

It is the second age of space colonization. The first age, humanity's initial attempt to people the stars, ended in disaster when it was discovered that Earth's original super-luminal drive did lasting genetic damage to all who used it - permanently mutating Earth's far-flung colonists in mind and body. Abandoned by their home planet, exiles in alien star systems, these variant humans had no choice but to survive any way they could.
Jamisia has always lived in Shido Habitat, a corporate satellite in Earth's outer orbit. She has no memories of her parents, but has been nurtured by the fatherly care of her tutor. Protected by her biological brain-ware systems, and accompanied by the many voices in her head, she has grown into a resourceful, if unusual, young woman. When Shido is viciously attacked by corporate raiders, Jamisia's tutor risks his life to smuggle her onto a ship bound for the nearest ainniq - the Gueran jump station to the Up-and-Out. But before he dies, he tells her something which rocks the foundation of her world - the raiders were searching for her....