I would not have guessed this was yuri if it wasn't for the tag. I didn't see a hint of attraction between the two, even while they were bathing.
I'm only worried that if they started anything that they would be burned at the stake for being lesbians, or unmarried, or literate.
I’d honestly be more worried about the fact that the witch lady almost certainly isn’t Christian. You could get away with a lot in the Middle Ages depending on where you lived and who you’re local leaders were, but religious differences? That was the kind of thing that got your house burned down by an angry mob. Especially during the plague, when people were especially desperate to find a scapegoat to punish for their suffering.
Also, I’m still not sure where the idea that it was illegal for medieval women to be literate came from. Nuns and nobles were oftentimes literate, and as far as I know there were never any laws prohibiting the lowborn people of either sex from learning how to read, even if it was uncommon. I don’t think there were ever any laws about women being unmarried either (although they did have fewer rights than even their married counterparts). Lesbianism, on the other hand… yeah, that could be an issue, but hey, maybe the lord in this story is cool with that kind of thing.
I doubt lesbianism would be held as an issue considering several other factors shown just in chapter 1 alone.
Firstly, the local Lord is so remarkably friendly and open that he's apparently out and about chatting with random commoners in town, even regional outsiders, and encouraging open-mindedness towards the supernatural.
If you've ever read a single page of medieval history, you'll know that's comically unrealistic for a medieval nobleman to even consider doing like this; showing that he's clearly (to the point of caricature) an idealized modern image of a "good nobleman" with few of the prejudices, fears or restrictions that a real one would've had. He's clearly there to smooth over some of the rougher parts of medieval society that the story doesn't want to deal with, at least yet. (That's not criticism mind you, I don't mind it, I'm just pointing it out)
Secondly, seeing as witches were believed to literally copulate with Satan and that all magic was derived from his favour, the fact alone that the locals and Lord are explicitly accepting of the "witch" despite presumably being faithful Christians and honestly believing her to be a witch already kinda renders lesbianism inconsequential by comparison. Being a lesbian at that point would be orders of magnitude less heretical, like accepting someone committing murder but then getting upset about jaywalking.