Everyonw just doesnt realize, even though they both lost their parents, they grew up in different environments. Fl is forced to be like that to survive. If she doesnt open her mouth considering that she came from a poor background, she wouldnt get far all this way. So her personality being lkke that is simply for survival. While ml grew up with a silver spoon on his mouth, he lost his parents, and have been bullied. His personality being nonchalant makes sense after all.
somewhere in the northern italy