Patchwork Station

(Inspired by Destiny 2, Transformers: Rise of the Beasts, Transformers: Victory, Red Dwarf, Transformers: More Than Meets The Eye, Gundam, Star Wars, and Dishwasher1910's Grimm!RWBY artwork)

In another timeline, another universe, the people of Remnant have taken to the stars, colonising the solar system and naming their home world's colonies as Vale, Alsius, Mantle, Mistral, Menagerie, and Vacuo, with its moons being named into Beacon, Shade, Haven, and Atlas. It's people, Human and Faunus, have structured themselves into political blocks known as Houses, with House Magier, ruled by Ozpin Magier and his son Oscar, being the leading House alongside House Schnee, House Rose, House Belladonna, House Cardinal, House Adel, and House Nikos.

In this universe, the Grimm are not a threat from Remnant, but one from beyond the stars, a dark swarm of mindless alien animals that seek to consume all of Remnant and its colonies and destroy all of mankind, Human and Faunus alike. To combat them, the people of the newly christened Rebirth solar system have created an army of ace pilots and warriors to destroy them. Known as Hunters, these fleets of starships and fighters, and armies of soldiers and droids, would go out on grand crusades against the Grimm, rending many swarms of them asunder in their endless quest to keep their worlds safe.

And leading the charge against them and their Human and Faunus collaborators are the RWBY Force, a squadron of star pilots and ground warriors led by Flight Lead Ruby Rose, Political Officer Weiss Schnee, Infiltration Expert Blake Belladonna, and Ground Commander Yang Xiao Long, they do battle with the forces of Cinder Fall, Adam Taurus, and Salem, the merciless collaborators of the Grimm who seek to destroy all mankind for their own selfish gains. With the backing of House Nikos and the figurehead of Pyrrha Nikos, and the assistance of two childhood friends and mechanics, Nora Valkyrie and Lie Ren, and the backing of all the major Houses, including House Magier and Ozpin himself, the RWBY Force stand ready to beat back the Grimm and end their threat once and for all...

But that's not this story.

This story is about Jaune Arc - the only survivor of House Arc after its fall and massacre to the Grimm - as he is transferred to the logistics space station known as the Patchwork in orbit of the Signal dwarf moon, and is confronted with the fact that he has been sent there because he is considered to be of little tactical worth to the war effort against the Grimm.

He and everyone else on the station.

The Patchwork is a haphazard space station, poorly maintained and considered of little importance other than logistics, and the people that are stationed there to populate it are the ones that were considered by the Houses to be too reckless, rebellious, or useless to utilise on the various battlefields that cover the solar system. Crewed by the likes of the hyperactive Neon Katt, the socially-awkward May Zedong, the brawler Brawnz Ni, the envious Arslan Altan, the cynical Scarlet David, the comically series Ciel Soleli, and a whole host of other side characters from the main canon that have been placed on the station, the crew of the Patchwork are a dysfunctional collection of expendables, hangers-on, and nobodies who spend half as much time bickering with each other than they do performing their busywork duties and pretending that they have friends.

Yeah, it's a real mess in Patchwork, and it's a wonder that any of them even like each other, or at least pretend to.

And the RWBY Force? They're portrayed as a bit like Ace Rimmer to the Red Dwarf, in that they are always portrayed as better than the Patchwork crew, are always performing amazing feats of heroics out in the edges of the solar system whilst the Patchwork crew are barely able to hold their own against the Grimm, and are treated by the majority of the Hunters armies and Houses as less than second note, so there's a healthy amount of resentment in the Patchwork station to those that barely even know they exist, as well as to those that treat them like dirt and second-hand goods as well.

But there are more forces at play as well, and the crew of Patchwork station would soon find themselves on a new frontline as a horde of Grimm attack the satellite, and the crewmates are barely able to hold them off before Jaune comes across two figures that he never thought he'd see:

His mother and father, Jacques and Isabelle d'Arc. Or at least, their rotting corpses, possessed by Grimm parasites and mutated into new, demented purpose.

Patchwork is overrun and its crew are forced to abandon the station and flee to the dwarf planet of Signal and hide from the monsters, all the while the possessed corpses of Jaune's parents take control of the station and begin to move it out of orbit of the small world.

With their communications down and no way of calling anyone for help, the Patchwork crew are forced to put aside their differences and get off Signal in pursuit of the station, bickering all the way as they do. Soon enough, they chase the corrupted station first to the Glenn asteroid belt, then to the destroyed moon of Sumire (a world that has been split open into two), then to Pharos Station, which would be destroyed by the infested Patchwork station, and finally to Argus, the ravaged world that was once home to House Arc, and how now been overrun by the Grimm and abandoned by Remnant's forces.

And it is here where Jaune and the rest of the Patchwork crew learn of what the infested corpses of his parents are planning:

They seek to turn Argus into a War World, a planet-sized Grimm that will eat every other planet in the solar system, using the Patchwork as a signal beacon to mutate the Grimm on the planet's surface into the world's fauna, seeping all the way down into its core and corrupting it, creating a massive Grimm that will destroy Remnant and all its colonies.

With no choice but to engage, the Patchwork crew go to war with Jaune's dead parents, and Jaune is forced to fight and kill the both of them, ending their threat and scattering the Grimm across the planet once more without any leadership. However, as Jaune buries the bodies of his parents and as the Patchwork station is removed of Grimm and repaired, he interacts with the Grimm in a way that should not be possible, and receives a startling, and horrifying vision:

The Grimm aren't just aliens. They're alien parasites. They are a hivemind of monsters that moves from one system to the next, destroying countless worlds and civilisations, and devouring entire galaxies to feed their collective biomass.

And his sisters... unlike all the other countless victims of the Grimm, his sisters, all seven of them, were alive.

And they had been turned into Grimm.

Unlike his mother and father, none of his sisters had been killed, but had been corrupted by the Grimm's collective consciousness. They were still conscious, aware of themselves, and fully in control of their own actions, but their minds have been tainted by the Grimm, mutated into something unrecognisable, something that now seeks to spread the will of the Grimm across all of creation.

Now they are called the Aspects of Sin, and have been turned into the collective leaders of the Grimm and their central coordinators of their swarms. They are the queens of their own thrones, their own castles, their own Houses, and they seek to make Remnant and all its colonies into their new kingdoms...

And they want their brother to join them.

Along with their consciouses and minds remaining intact, Jaune's seven sisters still have all of their memories as well, the memories of their past lives, and the memories of their brother, the one member of their family that had yet to join them. They also remembered, and still felt, the love that they all shared for each other, and still love Jaune as their dearest brother, hence their need for him to join their side.

However, their love for him has become twisted and corrupted by the Grimm as well. Now, that same familial love has become toxic, delusional and needy and violently possessive in their need for him to be by their side, a swirling vortex of love and hatred for their remaining sibling commingled together. They would go to any length to control him, to force him to bend to their will, to become theirs, to join their family once more in the power and mind of their vile flesh and dark desires, their appetite for destruction and the twisted progeny that they spawn.

The corpses of their mother and father? An experiment to try and bring them back from the dead.

And the War World that the Patchwork had stopped from forming? It would've merely been the weakest of their number.

The Arc sisters already have their own collection of War Worlds at their disposal, all of which are now on their way to Remnant's solar system. They now posed a bigger threat to all of mankind's existence than any of the enemies that even RWBY Flight had ever faced.

With mankind now at risk of extinction, and all the worlds that they know on the brink of annihilation, Jaune must lead his new friends and allies in Patchwork Station against this invasion and against his own flesh and blood, all the while they face threats not just from without, but from within, as old hatreds within the Houses threaten to flare, more hands involved in the destruction of Argus and House Arc become clear, and old rivals to Jaune's House decide that they want to even the score with the last remaining descendant of the family they hated so much.

The only thing that the crew of the Patchwork can do is stand together, and fight together against the end.

(If only they could stop bickering first of all...)