I think the Angels are just waiting for the opportune time to hit the castle. You know, when their objective isn't in the same room as her captor and a giant demon.
I do think Suparna is scarier than the rapey succubus, oddly enough. Though I guess that's just because Suparna is also a rapist, but also a girl made up of bugs and guts.
And with Suprana... That was literally all of them. Every demon. What was supposed to be a personal one on one between Miyu and Henry expanded until every single demon showed up.
Also, do you guys have any particular plans for what place we are supposed to heist the resources from, or can I come up with a place? I already have, but that's just cause I feel like being prepared for when I can finally drop the montage and commandy bit.