A vision for an epic space opera set in the Neptunia universe.

Set in the anime continuity shortly after the OVA, Gamindustri is attacked by a nation calling itself the PC Master Race. Heavily based on the Nazis, these xenophobes view console gaming as obsolete, believing PC gaming to be the wave of the future.

Launching an all-out attack on the continent, all seems lost until IF reveals that she and Compa have been working on a starship to evacuate Planeptune's top brass in the event of an attack from a superior enemy. Initially intent on escaping to the other side of the planet, Neptune convinces IF to go to Lastation, Lowee, and Leanbox to rescue the other CPUs, CPU Candidates, Makers, and Oracles. In the escape, RED and Tekken were killed by Linda, but everyone else escaped.

Escaping to the planet Sindir on the far reaches of the galaxy, the Goddesses mourn their failure to protect their people, with Neptune taking it the hardest, to the point that she contemplates suicide before Nepgear talks her out of it. Over the next 30 years, the PC Master Race rapidly develops into a spacefaring civilization known as the Galactic Empire, seeking to spread their will across the galaxy. By the time our story really gets going, the Empire now encompasses most of the galaxy, with a few minor civilizations still holding their independence.

Neptune and friends, who haven't aged a day since fleeing Earth (not even the Makers, which Histoire chalks up to being in contact with the Goddesses long enough to stop them from aging, effectively making them immortal), having found a way to transform into their CPU forms without the use of Shares, sneak back to Earth and find out about a nascent movement known as the Gamindustri Freedom League, a protest group that often finds itself under direct attack from the Empire, which has outlawed freedom of speech as "treasonous".

Rescuing the remaining members of the movement, Neptune uses the name as the name for an open rebellion. Nicknamed the Rebel Alliance, the GFL initially fought a series of low-key engagements with the Empire, mainly in the form of hijacking Imperial ships and equipment, as well as picking off patrol ships.

When the rebellion was formalized, they sent a letter of demands to the Empire, threatening a major terrorist attack if they didn't agree to democratic elections and to abandon Earth. The Empire's response involved exterminating the Iconian Refuge to send a message.

Rather than surrender, the GFL instead followed through on its threat, and destroyed THQ Station, a major orbital marketplace with a mall. Thus began the Great Galactic War.

Neptune, Noire, Blanc, and Vert came to an agreement shortly after the beginning of the war: should they liberate Earth, they would become one civilization known as the Galactic Republic. For the rebellion, though, the Planeptune flag was used.