Following the events of Muv-Luv Unlimited: The Day After 01, Lieutenant Tatsunami Hibiki is now hailed as the hero of Seattle — a title he believes is undeserved. But despite his newfound fame, he has no time to rest on his laurels, because an entirely new challenge awaits!

Her Highness the Shogun is coming to Seattle, and with her, a synthetic food production plant that may hold the key to ending Japan's food crisis once and for all. Finally, after months of struggle, it would seem that humanity's fortunes are turning around. But the seeds of division among mankind have taken root, as unseen enemies lurk in the shadows, waiting for the right opportunity to strike — and to snuff out any hope of securing a peaceful future.

As Hibiki fights to live up to his reputation, just how far will he be willing to go to defend the Empire and its people?