I haven’t read the chapter yet, but seeing all the outrage here makes me think it is time to drop this. I might come back later if I can’t resist my curiosity.
I agree with a lot of the points that other people have raised here. The isekai setting was pretty pointless, though I guess it is to make the readers not questioning why the children could talk and think unlike normal children. But as the others have also pointed out, this can already be explained by them having the royal blood, which makes them grow faster.
It’s also annoying to see misunderstanding after another misunderstanding. Have they ever heard of this nifty thing called “communication”? A misunderstanding once on a while is fine, sometimes even comical, but a string of misunderstandings is just tiresome. It is annoying to see all the problems and none of the satisfying solutions.
Oh, the telepathy thing is also never explained or so much as alluded in the story. It is like the coolest thing the twin could do.