"She did make a request of you, did she not?"
That... she did. Kiyoko asked you for a dose of your bodily energy, as she put it, said it was a way forward to freeing her. But for your own reasons, you'd rather not do the deed personally, and would prefer to pass on this duty to someone else. To that extent, you'd rather return the amulet to him and let him sort it out himself, get someone else to do the deed. He doesn't have a problem with that, does he?
"I... well..." The Trickster sighs. "After hearing of the details from Komari, I was hoping that you'd be willing; you are quite the unique woman, after all. Nevertheless, if you came all the way here, then you've had ample time to change your mind should you want to, and I can respect your reasons. Thank you, then, for returning my descendant to me."
You hand over the amulet, and Keros tucks it away in his robes. With your job done, that's the last you'll ever see of it.
"Now then, a suitable reward... I think I have just the thing."
Just as quickly as Keros made the amulet disappear, he turns his palm, and a rod-shaped device appears in his hand. The deity passes it on to you with a smile, and even at this distance you can feel the magic emanating from it.
"There've been some troubles lately, and my people came across this in the conflict. Strange artifice, indeed — Nareva would love to get her hands on it, but I think its story isn't over just yet, and it would most definitely be a done deal if it's rotting away in one of her vaults. While the rod's useless for its intended purpose, it's still quite the potent catalyst. I'd like to see what kind of future you can give it — there's the promise of a good yarn to be spun."
Received the control rod.
At least there aren't going to be any unexpected consequences to this particular trinket. Probably. Hopefully.
"Please forgive me, but you've just made me a very busy god. Once again, your efforts are appreciated, Jasmine. Do petition me again when the both of us aren't pressed for time."
After giving you a bow, the deity clambers up onto the plinth again, and just like that, the figure's stone once more, although in quite the different pose than he was in previously. You can feel the tension in the air drain as Miko and Mai share glances with each other, then at their great-great-grandmother.
"Well," she says, heaving a sigh and shaking out her golden fur, "that didn't quite go the way I'd expected it to. I'll... I'll leave you to your thoughts now; I know I need to be alone with mine. Mikoto, Miyuki, please attend to me."
The sisters dip their heads, then fall in by Komari's side as the den matron departs, leaving you alone in the shrine. A sense of closure hangs heavy in the air... but the deed's done, the exchange's made, and there's no point in second-guessing your decisions.