Sometimes the satire is campy:
I don’t think the illustrator had a good reason to make all the girls do the cat smile here. I think it’s one of those things where the picture got out of control and the artist couldn’t stop repeating a pattern.
[The image should be visible as a much larger version if you left-click it.]
We still haven’t seen a significant appearance from the cute office-lady who has a prominent place in the opening. She got a little screen time during Episode 2, but given her position in the opening, I would expect her to be a major character.
Episode 4 is mostly about wise proverbs, some of which are deeper than others.