In Singularity F, everyone only ever makes a big deal about the Caster Cu vs. Shadow Emiya fight, is anyone talking about how many parallels/foils there are with Heaven’s Feel?!
Everyone’s already talked about the Cu vs Emiya so I’ll just sum it up. Basically, Emiya is your enemy and Cu isn’t, roles reversed, etc.
Anyways, beyond that, ever notice how in Heaven’s Feel, we don’t know anything about Cu? He’s straight-up eaten by the Shadow before anything (besides attacking with Rin and Shirou in the Prologue). Rider becomes a more constant companion, while still retaining the mystery of who she is and her past. Much in the same way, in Singularity F, Medusa is now Medusa Alter, appears briefly and is taken out before any real significance and now Cu is our constant companion. We know him as Cu, but there’s still a lot of mystery shrouding him (no one say anything about LB).
Then when we get to the Cavern, where the Greater Grail should be, instead of having Saber Alter guarding Dark Sakura (the one who caused all the servants to change sides) it’s Shadow Emiya guarding Saber Alter (the one who defeated all 5 other servants and caused them to change). On top of the fact, Heaven’s Feel revolves around how terribly wrong everything went that the Grail War went askew, just like how the mystery events of Singularity F.
And the worse part, in the fight at the cavern where Illya willingly sacrifices herself when Shirou dies as the finale of HF, Olga Marie is the unwilling sacrifice to kickstart the events of FGO while we survive.















