Update: Her name is Okiku, but since I got this information from a random Twitter post, I’ll have to check the validity of these claims, and once again, I do not have access to these episodes but I should, at most be able to watch them by Christmas or Dec 26

@Swanearl It would make sense if her name is actually Okiku, since her character does have a lot of references to the Banchou Sarayashiki story (with her being obsessed with plates and all).

After making that post, I decided to research the name and found the exact information you just told me