[Crossover] Seven Holy Grails for a Doctor Back to Chaldea? What a Steal!

BB: Master~

BB: There's a strange System here saying that if we go to seven paranormal sites to save the world and collect seven special Holy Grails, we can get Doctor Roman to come to Chaldea~

Gudako (eyes lighting up): Really?

Gudako (eagerly getting ready for Spiritron Transfer): Just seven? What a bargain. Come on, we're short on time!

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Tip: This is my take on Gudako as a Beast of Humanity. She has a bit of PTSD over what happened to the Doctor. There'll be all kinds of OOC moments, and there should be a CP... probably?

The timeline is before the Lostbelt journey, probably just after the Pseudo-Singularity arc.

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I'll change the cover and blurb later. I'm writing without an outline, and the author really likes reading comments!

Theme: It's 2024 already. The Doctor should come back to Chaldea.