The famed Imperial pilot and duelist, General Prall Sabik, has agreed to battle a prototype new mech. Thus she and her lover, Major Cassara Nell, are pulled down into a dangerous, desperate game engineered by the capricious android known as Maximal Value.

To save the colony from the encroaching Rift, you submit yourself to the alien Master that now sits on your head. Following a vision, you soon find yourself underground within the belly of the beast, meeting the true Purpose behind your submission.