Although mentally they should be 23, they aren't actual 23 because experience we gain as we grow I think will be different than we suddenly became small again. But that doesn't justify how easily they can be deceived given that they should be 18 at least by experience
That's creepy why would a 10 yrs old boy smile so sinister like that.
Also.. Quick Alluka your brother just switch job being an hunter and enter this world hahahah
even if he's a baskturd in the end, the twin's don't have any intentions of being in a gilded cage. I hope he turns out to be confidant by the end of it, and join the "more mature on-the-inside kids club"
if the man himself is simple, what about his son who even receives praises from dad