Humanity's attempt to terraform and colonize Mars goes horribly wrong. In the late 26th century, overpopulation on Earth is reaching the breaking point, and humanity must find new frontiers. The terraforming of Mars has taken centuries but is now complete. The colonization of Mars by humanity is an epoch-making event, but an unintended side effect of the terraforming process unleashes a horror no one could ever have imagined... As Ivan closes in on the alien leader, the Invoker, the Terraformar army attacks in full force. Elsewhere, Shokichi and Akari square off in a final confrontation to settle things between them. Now the fate and pride of the human race rests on the shoulders of those who have sacrificed their own humanity to be its defenders. When faced with an unimaginable enemy, what will they do if their inhuman strength can't save them?