Originally Posted by
fumei
I just realized something. Olga was thrown into CHALDEAS, and was experimented on in their A51 and all that jazz we already know, and now that we know UOM was a Servant, that means it would've gotten summoned "from" Olga, taking her personality as "base" or whatever. But if UOM was a Servant, it would have to be summoned, and of course it got its body in Olympus, not like it possessed Olga inside CHALDEAS and then just popped out. That is to say, UOM disappeared in LB7 (for now), but for all we know, the actual Olga should still exist within CHALDEAS, no? If the A51 we connected to in Traum is the one inside CHALDEAS, I would assume she was moved from there, but still, I can very much see us finding the real one in there when we pop inside.
Also, what became of that "mansion" or whatever Rasputin/UOM mentioned in 7.1? I feel like that never came up again either.