Hino's and Nagafuji's chapters were pretty nice, kinda weird they still needed to be fleshed out this late in the series, but better late than never. The story of Hino's family puts her behavior into perspective though I feel a little sad for the maid, it's as if she sees Hino and Nagafuji's potential future as them living out the happiness she couldn't have. I hope the author doesn't leave things between them ambiguous just because they're not the main characters and that we get a few more chapters with them coming to terms with what they want from each other before the end of the series. I'm sure even Nagafuji can figure it out despite how she is.
The Christmas chapter was wonderful. From Adachi making some progress and not just being a complete mess, to Shimamura confronting her personality against her feelings and wish to overcome her apathy for Adachi's sake, to Shimamura's mom trying to perform a Christmas miracle between the Adachis. I just hope it doesn't backfire because it easily could.