GUNNM: Kasei Senki

The third part of GUNNM (Battle Angel Alita). The manga is a direct sequel to Last Order but also serves as a prequel for the series as a whole.
For centuries, war has raged on the dusty, red surface of Mars. This apocalyptic crucible will produce the solar system’s most fearsome warrior, Gally. But for now,​ that warrior is just a little girl named Yoko. The future and past of the battle angel fan out across the reaches of space in the final chapter of one of the greatest sci-fi epics of all time!
(Source: Kodansha USA, edited)