So, small side project I just started:
Full plot summary: Chaldea finds an isolated singularity that seems to have no bearing on history, however, due to something I still need to figure out, Ritsuka, Mashu, and a few Servants get curious. They transport themselves into the singularity, but something seems to have gone wrong, and the squad seems to have just transported themselves elsewhere in Chaldea. However, a few members of the party notice some discrepancies, which all come to a head when Atalanta turns a corner to find a completely devastated adjoining hallway. The vast majority of Chaldea is no different.
The team gradually comes to realize that this 'singularity' is an alternate history in which everything went wrong in all the worst possible ways. The facility is dark, dead, and feels empty, but they also feel like they're being watched. They just don't know the specifics of what took place. However, when they try and get in touch with Da Vinci back at headquarters to get some intel, they find that they can't make contact.
I'll get to the bones of it: In this world Galahad wasn't summoned, and Mashu died in the initial bombing. Ritsuka and Olga Marie still encountered CasCu who helps them through the Fuyuki singularity, and does so successfully against all odds by being devilishly clever. However, Lev arrives right on schedule and attempts to kill Olga. Ritsuka however, attempts to save her. He does. And takes her place in the immediate aftermath, which we are all so familiar with. Due to some bullshit, Olga gets sent back to her still-living body—alongside Cu—with the help of some other survivors who figure out how to operate the rayshift (am I getting that right? It's been a while since I've seen the OVA, and I haven't made a point of watching the English patch yet).
Unfortunately, when she gets back, she finds that the whole world is gone but for Chaldea. She and Cu barely manage to get through one more singularity before Lev leads Solomon right to Chaldea's front door. There's virtually no resistance left though, so he just destroys the rayshift thing that I clearly need to research. Nothing more anyone can do if they can't get into the singularities. He does however leave a number of portals like the one he used to get in to allow monsters to roam the halls. Chaldea becomes a kind of hell, and Olga and her companions hunker down somewhere and just end up trying to survive while also seeing if there's any way to fix things. It's been about two years, and several more people are dead, leaving the survivors at eight people and one Servant.
Cue the big damn heroes arriving and attempting to save the day.
They encounter the survivors, thrilled to see Olga alive, but she thinks they're monsters impersonating her dead friends, she's already been betrayed once, she's not going to let it happen again. She's convinced when Da Vinci finally managed to contact them and explains their real predicament:
Oh right, and they have three days to get to the opposite end of the building and then the world ends. This proves to be trickier than initially anticipated as the team is slowly picked off by powerful fiends and phantom Servants.
Genre: Survival Horror
Why: I want to create a fanverse people can use if they want to write a Grand Order fic with Olga Marie, because after everything I'm plan on putting her through, killing her on top of that would be both an easy way out for her, and at the same time, sickeningly cruel.
Who: Aside from those I've mentioned, Hassan of the Cursed Arm, Berserkalot, Siegfried, and seven OCs who are also all going to die horrible, possibly graphic deaths.
So, any thoughts?