(From the series of watching all the of the specials, alternatives, movies, etc. I haven't seen)
Okay, so
what more can I say than that it's quite simple, it just shows what they did during their vacation-their meetings at the beach, etc.
Of course, it's quite simple, but it's not bad either.
This would be entirely true if it weren't for the last 8 minutes or so of episode 2.
Because of them, I honestly recommend watching it before the movie (because that would make it chronological).
What Yutsuba says at the end is quite important and is a big "spoiler" and a clue to some of the things we learn in the movie.
And that's the main reason why it's still worth watching if you want to know more.
Not gonna lie, even if you are seeing the special after the movie, it can still change a lot about your perception of Yutuba.