Most species with horns and wings do not give birth to young with those features already developed enough to be "proper" for exactly this reason. Birthing hips are considered a desirable feature because they make multiple goes at producing viable progeny more likely, but evolution historically...
Translation note: "the young ladies" (Page 19, Panel 2) should probably be fixed, because while I don't have the raws in front of me I do know that the word for "orangutan" that the series uses for the monkey monsters ( 猩々, localized as "Orangurang") sounds very similar to 少女 but doesn't make...
Somehow this is my first exposure to the notion that yami nabe isn't done literally in the dark, though of course an opaque stock makes much more sense for simmered food. (This series is chaotic enough that I could see that happening regardless, but still.)
This is a manga with chapters the length of a weekly series released monthly at best and a significant proportion of the dialogue and visuals are not dedicated to plot beats or points of characterization. I enjoy it well enough that I'm planning to start the anime once I've finished with last...
I could be forgetting a part in between that explains it, but going back to Chapter 2 her student ID has a different address entirely.
She received mail addressed to "Fukagawa Miyu" rather than the dead Fukagawa Miyu with the same name and birthday who she's impersonating.
"The maid from the party" and the scene in the accompanying panel suggest it's the previous chapter (86), when some nobles were harassing her at the entrance and tried to use Iana as an excuse to make things even more difficult for her.
The bird part being ruby-texted as "いなば" turned out to be key, albeit I'd still need to scrape the intervening chapters to confirm when the name comes up: Inaba is apparently the name of the giant riding sparrow Yomi procured back in the vampire arc.
If the previous page talking about Konoha...