Amidst the abandoned desolation of Earth, having suffered for nearly ten years under the tyrannical Andromedan Federation’s plundering of its resources in its war against the Interstellar Union, a lone scavenger named Jiro Tsushima uncovers a long-forgotten weapon that could finally free humanity from the Federation’s iron grip: the gigantic mecha ASTER. With only one year left before Earth becomes an uninhabitable wasteland, Jiro suddenly finds himself the best, and perhaps only, hope for the future.