I found it very interesting when Akane smacked Miwa...
Hear me out.
It's very rare in Japanese media - anime and manga - for a male to strike a female. Culturally, females are treated as physically weaker than males, so that sort of physical contact has major narrative significance. Consider most shonen anime and try to pick out how often a female protagonist had a physical brawl with a male antagonist. And while, in this specific instance, it was played for comedy - a sort of "nandeyanen" karate chop - that's still not something you typically see.
As trope-laden as this medium is... the fact that this happened laid it out with no uncertainty that this story is treating Akane as a woman. They aren't just saying that she is; they are showing it, all the way down to the level of the tropes that are used to characterize her.
I dunno... I guess that just struck me as nice to see, like... the fact that that trope was used somehow normalized the character beyond the construction of the narrative.
I hope I'm making sense...
Also, I really loved this chapter, and I'm so eager for the rest.