Isako is a legendary swordswoman, but every legend has to come to an end. When her long-time client unexpectedly retires, she plans to follow-to walk out into the frozen wasteland of their planet with her head held high and her family enriched by her legacy. But when a competitor offers her a final mission, it's one she can't refuse. Soon, she's thrust deep into a world of corporate espionage, duty-bound duels, and shadowy secrets. What she uncovers will change humanity's existence in the stars forever.