@Nep - either the trio are actually little girls (and they're just that ugly), or they're suffering from Old Age Shrinking Syndrome common in anime and manga.
Why little girls? Because they get all embarrassed and scatter when an adult man says "hello" to them.
Sure, but the end result is already apparent 'cause of the timey wimey stuff before now. Other stories, the drama would kind of loom overheard because there are a few authors out there in Japan that will actually throw the curve ball instead of just going straight down the center. Drama like this feels less significant than it should either way around though.