I'm torn, honestly.

I think the way in which they handled Nanamo's 'death' was very cheap and contrived. On the other hand, I adored Yotsuyu as a character and I'm very glad to see that she survived. Given that she became cruel as a result of being treated horribly by the Domans I feel like there's a lot of potential left for her in terms of story. It certainly adds shades of grey to Doma's tale.