"Hmm. Acceptable, I suppose."

"Not sure how detailed the prophecy should get... like, it seems hard to hit 'unambiguous enough that people know when it's happened, ambiguous enough that we aren't known to be obvious prophecy candidates from an early age'... hmm, actually, can we like, schedule a few miracles to show up and highlight the chosen ones at appropriate moments? I'm thinking something along the lines of like... a prophecy that says there's going to be a group of heroes capable of solving or at least seriously improving the interdimensional invasion situation, and implies something about internal conflicts within the group but leaves the details pretty vague outside of things that are definitely going to be mandatory plot beats, and then says, like, something something the chosen will be anointed by divine magic when the time is right blah blah, and then we and the heroines and maybe even the love interests all get haloed in unfakeable golden light at some point during the plot."

"--I could see that. Although--hm, do we want to say like--there are more people who have the potential to be Chosen Ones than are actually going to end up being Chosen Ones? Competing for the right to save the world could, you know, add an extra element of stake to the situation."

"And what pray tell is the victory condition of this competition?"

But Naomi is shaking her head. "See, I like the plan where we're all chosen ones better, because it gives the heroines an incentive to cooperate with us for the good of the world. And then I can seduce them."

"My concern is that both Naomi and I have chosen death as our default options, and I don't super want our new society to be stupid enough to execute invasion-stopping Chosen Ones over the kind of romantic dramatics we might plausibly have gone through with."

"Maybe there's ways we can lose Chosen One status? Have to think about that..."

"--I guess death doesn't necessarily imply execution, come to think of it."

"Oh, true! Perfectly happy to have a big rock fall on my head. I mean, no I'm not, but contextually."

"Alright. Three of us, three fiances, three--no, four--heroines...ten is a reasonable number of Chosen Ones, I think. Although I do think--I think that each Chosen One should be referred to sort of obliquely in the prophecy, such that, like, not only are we not identified as Chosen Ones when we're, like, two, we aren't all identified at the same time, and probably either none or not many of us should be identified before the plot starts."

"That's sort of what I was going for with the idea of having some specific prophesied event that can go off at the right time to make it really unambiguous." She looks at the angel. "Can we do that? You didn't say."

"As long as nothing about the prophesied event conflicts with anything mandatory, it's just permissible greebles," the angel says. 

"Right, but the idea I got from what you said about the prophesied event was that it would reveal all of us at once," Didyme says. "I was thinking more like slowly revealing traits the heroines are prophesied to have until it's unambiguous."

"Huh. I mean, why?"

"Because I think the narrative potential of everybody getting revealed at once is less than the sum of the narrative potential of ten individual reveals."

"Well, is there any reason we can't arrange to be haloed in golden light at individually chosen narratively appropriate moments?"

"Who would choose which moments were narratively appropriate?"

"Also...it could be that I'm missing something, but naively, I think people figuring it out would be more satisfying, if I were reading a book of this, than a dramatically-timed deus ex machina. --Maybe unless it was very dramatically timed, but Ghys's question is highly relevant."

She raises her eyebrows at the angel. "What options do we have for arranging the cleverest and most dramatic possible timing for our haloes of golden light?"

"You can invite an administering entity to panopticon your world and trigger the golden lights manually, you can have an algorithm attempt to determine the best moments, or you can have them set to trigger on the completion of specific plot points."

"Panopticon is such an unpromising verb... could we summon the lightshows, maybe? Whenever we think the time is right, with, I dunno, each of us deciding for ourself and our love interest and then the heroines getting theirs scripted? The thing I'm worried about with having the prophecies be like 'and this hero will be like that and do these things' is that we won't be able to come up with specifics that work right, that actually point unambiguously at us and nobody else at a narratively appropriate time that's not too soon or too late. You could convince me to abandon this line of inquiry by coming up with specifics that sound like they're genuinely going to work right."

"That's reasonable, although not knowing anything about any of the love interests except my brother or any of the heroines, it'd be hard to come up with criteria for them specifically...for you, I'm tempted to say either 'superhuman charisma' or something about your hair." 

"Well, yes, 'it's hard to come up with criteria for people we don't know' is part of the problem here!"

"I guess trusting the management to come up with something would be a bit much."

"Indeed. So. I think lightshows are cool and pretty and unambiguous, and probably easier to get right than lists of traits. Can we trigger our own and our love interests' lightshows or is that not actually allowed?"

"Hm...the problem I see is that...presumably, within the story, the villainesses don't have this ability; giving you abilities that you're not textually supposed to have would be, hm, chancy. Am I understanding this accurately?"