Just a guess: MC got isekai'ed. The girl was raised by someone who got isekai'ed.
Not like this has any importance whatsoever.
The plot is irrelevant, all I need is fluff.
@zetsuravez ya "she's from 'this side' and I'm 'foreign'". No way foreign would have been in quotes if it didn't mean something more. I got tricked into reading an isekai... But it's not trash so I won't drop it yet
Translator-san, the female main character’s name has, in my opinion, been incorrectly translated. ネーレ should be Nelaé, not Nale. ナレ is nale, which is, of course, the wrong first syllable.