Jesus Christ, i know Japanese like to relax in bath a lot, but it's like their brain turns off - they always try to hide instead of indicating that they are already there when someone from the opposite gender accidentally comes in.
Also, no one gonna point out Ponko doing Aqua bit or make a giant enemy crab joke?
So far a pretty funny version of the old hot spring mixup (it's in the future so of course robot harrassment is a thing :).
My favourite still is Minami-ke chapter 73-74 though. Poor Fujioka, it can't be easy to be that dumb. https://mangadex.org/chapter/60974/2