[Childe looks once between Aramiya, to Yoimiya, and back to Aramiya. The look on his girlfriend's face says it all- this is crazy and it's unfathomable how that little wooden carving is an actual, real live Aranara. While not quite as stupefied as Yoimiya is, he is very surprised that there's a real life version of the carving.

With a real life imitation of the girl's personality next to him.]

We! Uhhhhh...we don't know Aramiya personally, but let's just say that...she's...ahhhh...well known! Yes, she's well known in Sumeru, haha. So much that there's little wooden carvings made of her that are for sale! That's how we know her.

[For all his years in the Fatui, this is the best lie he can come up with on the spot...]

Ahem, so, it's pretty flattering, wouldn't you say? We didn't know we'd be running into a celebrity today.