This is basically Ashita wa Doyoubi, only if it was written by someone who ships Mina and Sanae.
Like "let's have the two share a kiss offscreen in chapter 1 and have Yukari fangirl over how cute they are together in chapter 2 and 4" kind of ship.
Don't get me wrong, I'm not bashing the author for having a ship, it's just when the rest of the Takagi-san franchise portrays Mina and Sanae's relationship as more platonic/sisterly, (Ashita wa Doyoubi does not even have a "romance" tag on it),
plus the sequel manga, Karakai Jouzu no (Moto) Takagi-san, shows that not only did Mina and Sanae never liked each other like that, but Mina got married and has three kids while Sanae is still single.
it just comes off like a fanfic writer forcing his/her OTP onto the reader regardless of canon.
That being said, I know that there are some readers who wanted more "romantic two-girl friendship" moments between Mina and Sanae
and were probably disappointed with how the sequel manga made the pairing officially non-canon
(the author of this manga possibly being one of them), so if you wanted more of that, then this manga might be for you. Otherwise, just read Ashita wa Doyoubi. It's the basically same manga only written by the author of the original Karakai Jouzu no Takagi-san.
It's nice seeing these 3 again, after finishing Ashita wa Doyoubi, but it's not as good, and it's kind of repetitive. Not surprised there aren't any more translated, as this series isn't really that interesting. Don't get me wrong, I finished what was available, I just thought it was one of the weaker entries into this shared universe.
I know this section is pretty much dead, but there is an announcement on this series. On April 2020 at Monthly Shonen Sunday, Yukari-chan will release the final chapter of the series. Effectively the series will be over after this release. So in the end, this series will contained 53 chapters at minimum, 5 special mangaka chapter and a set of 4 koma manga in 5 volumes. If you somehow able to read this series in whichever language, let's hope this series will end in a good zone. Here is the link where the author announced the news:
https://twitter.com/39140UMA/status/1238015391663828994