Alright I guess I can ask this here. It's been a while since I played F/SN and the endings are a bit blurry to me but I just started playing Hollow Ataraxia and I'm struggling to think which ending allows all this to proceed six months after the end of the fifth war.
Or did they go for an original ending that allowed for such a setting? Sorry if I'm missing something but I've been rattling my brain for the past half hour in the car over it.