That Time I Got Reincarnated as a Slime: Tensei shitara Slime datta Ken

[Munsu]

Ugh..

I'll just focus on one thing...

Why would a "demon-summoning" accept dead bodies without souls as an offering?
That whole thing came out of nowhere in the first place, but he "sacrificed" dead bodymass. "But it's enough to summon the greatest of the great" - of course.

And obviously, he summoned 3 demons and the other 2 demons are there just for the sacrifice?
It's kinda pointless to include them in this show, so I guess, since they sacrificed themselves and to give these other two demons a reason to exist in this show, everyone who died and ressurected by their sacrifice, is now stronger than before and stronger than they would have been with the additional "gifts" from Rimuru's ascension.

And I kinda remember that demon, I think.... Is that the demon the otherworlder fought whose mask Rimuru is wearing all the time, from the OVAs?
I could be completely off though.

edit:

Oh, okay that solves it.

He's the same as episode 23 and 24 (where he's more fleshed out in the flashback with Shizu).

As for summoning, seems arbitrary rules at the moment.

I don't think all of bodies are necessarily souless (or I guess once they die they lose their souls, as that's one of the main reasons it's hard to resurrect... maybe there's a delay?), but I figure the importance was in the bodies. Not sure if their motivation is to acquire souls though, so maybe it's not something they'd be interested in. I recall that the first demon Rimuru summoned way back when he needed to provide a physical container for it (but no details were mentioned on how he summoned it that I recall), so maybe sacrificing flesh works just as well to provide a body for them. But the Primordial has been shown to manifest without need of some sort of container, I figure he could anchor himself in this world on a whim of being "called", he just chooses to accept or not.

The question then becomes, do the demons, regardless on how they come, posses more magiciules than what was used as a sacrifice to bring them forth? If that's so, then they were a necessity for the resurrection to succeed, but that's pure writer's discretion by that point. I figure in part was to show that Rimuru was willing to sacrifice his lifeline to bring his people back if needed be (particularly Shion that I assume required more magicules).

Another possibility is that Rimuru only meant to bring forth 1 demon (or just called demons in general and those 3 showed up), and that 1 demon was the Primordial who's always been paying attention to Rimuru so he had the foresight of bringing along pawns to sacrifice for the resurrection to succeed.