Hello I'm Purity,
I'm someone who's really invested into F/SN and as I'm currently studying all of it's existing lore and I'm trying to look for all of those Q&A Sessions Nasu has done over the years.
There's a lot of information in those things that was never mentioned in the Visual Novels, so yeah.
Unfortunately, looking for those interviews has been harder than I expected so I'm trying to see if there's anyone who could give me any hints of where to find those.
Thanks for your time.