More on the Lady Va thing, and in particular on the power dynamics of Lady Va vs Yon.
It seems likely that Lady Va will be part of the group of officers that we will be pulled up into. She'll have had a degree of control over her assignment, and will thus be specialized in... whatever it was that she wanted to be specialized in. We don't actually know what that is right now. Her prior history will have left her on somewhat shaky footing with her peers, but, I suspect, less inclined to indulge in Young Master/Mistress stupidity than many of said peers. She
has worked with Yon, after all, and their relationship is both pretty close and valuable to her at some level.
Also...
She unfortunately has "Significant NPC Syndrome", as seen with her most recent suitor. This may change with time.
I'm not exactly sure
what this means. "Significant NPC Syndrome" is a googlewhack. Still, I
think it means that she's not going to be getting any major unexpected power-ups, and her romantic life is likely to continue imploding.
So... I expect that when we get to her, she'll be doing fairly well as far as the opinion of her trainers is concerned, but socially somewhat isolated. There's a decent chance that she'll have responded to the social isolation by doubling down on whatever the appropriate training is, in a sort of "fuck you all, I'm just going to excel so hard that I'll rise above you, and what
you think of me won't
matter anymore" in which case both of those things will be a bit moreso.
They probably won't have been getting individual reports about how well specific cultivators on the enlisted side were doing, but I'd guess that she would have found out that Yon volunteered, and possibly that he got into the early group, and what that implied. She'd have every reason to believe that he would survive the process and come out the other side, and would probably have been looking forward to selecting him as her direct NCO once time came for such things. It would effectively have been a return to their old relationship in a number of ways, though the particulars would change. It was something comforting and reassuring to look forward to... not that she'd necessarily admit it to herself.
Having him actually show up in their group as "best of the best" from the enlisted ranks would be a surprise, though not necessarily an unwelcome one. Like, if nothing else, it absolutely would reflect well on her ability to spot and nurture talent. It would call for a bunch of rapid internal reshuffling on how she thought their relationship was going to look, though.
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...and here's where some of that big "culture of xianxia-world" post that I never actually managed to get myself to write comes in, because it's suddenly at least somewhat pertinent.
So one of the funny things about xianxia-world is that everyone wants to gain power, and it is
trivial for more powerful people to dramatically improve the power of less powerful people. Lady Va's third major relationship leapt up from "very real marriage candidate" to "I suppose I could offer you a pity concubinage" from finding a random cultivation technique, deep in the stacks of the library. Now, the fact that such a treasure was there to find is an interesting thing by itself, but it's not the one that matters here. Cultivation techniques can be shared by anyone who has them, pretty readily. The sect as a whole could be made enormously more powerful overall if they'd just make these things freely available... but they don't. Why?
Well, everyone's in it for themselves, and a peer is a threat. The relationship between Yon and Lady Va involved him investing heavily to support her while she occasionally dropped crumbs of largesse... but it was defined and held together by the fact that she was so much above him in power. It was important that she keep giving him these rewards, because lackeys that feel like they aren't getting enough out of the deal are potentially problematic in a number of ways. It was also useful, because every time she did, he was more able to provide service to her. At the same time, every time she did, she was consuming a precious resource. Specifically, she was consuming the differential in power between them. If she gave him
too much, he'd become strong enough that he didn't need to be her lackey anymore.
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So... when he shows up in the room as, effectively, only a half-step below her tier, that's going to come as a surprise. She would have been assuming that things would wind up being pretty straightforward. He'd come up the NCO track, she'd come up the officer track, she could select him as one of her NCOs, and he'd settle back into a role with power dynamics very similar to the ones they'd started with. Her payoff for her previous relationship with Yon would be that she'd have a competent and trustworthy subordinate filling that NCO slot. Very comfortable and normal - a small island of stability in a sea of change.
This new thing, though? That's a very different kind of payoff. Yon isn't
quite a peer, but he explicitly might become one. Once he does, he'll be coming in at the bottom of the band that she's in, but he'll still be in the band that she's in. She doesn't get to have him in one of her NCO slots anymore (assuming that he succeeds at ranking up) but she hasn't actually lost any slots... and hey, now she has a guy who actually knows all of the other potential NCOs personally and has been working with them for some time. So that's a resource to exploit.
It's worth noting here that their culture will have precedent for this sort of thing happening. "My lackey had a fortunate encounter and is now only a half-step below me and maybe not even that" isn't going to be any more alien to their cultural background than "my fiance had a fortunate encounter and is now out of my league." They'll have structures and options in place for such a thing, and not
all of them will involve murder. Lady Va will know them. Yon will know them too. Lady Va will be somewhat surprised. Yon will have good reason to suspect that it's coming, and will be prepared... which means that Yon will be in a pretty solid position to
guide the next steps in their little dance by presenting her with a path of least resistance that will result in them winding up with a relationship that she's not displeased by. These moments are likely somewhat fraught from
both sides.
Also, he has an easy obvious win from their relationship too. Just like she can benefit from his in-depth knowledge of the available NCOs, she has an understanding of their peers, and of the training they've been through in the intervening time, that Yon is likely to find
incredibly helpful. Stumbling in the dark is not so great for situations like this. That benefit is above and beyond the simple benefits of cooperation that they can gain just from having a (semi)peer in the room that they know how to work with and can (somewhat) trust.