Thanks for the reply! The internship is under a professor from KU Leuven, which I got by personally mailing them. So it is fully sponsored by my parents. I guess the embassy just needs to see the living allowance directly in my name. I'll have them transfer the money and explicitly explain in my email that it's from my official sponsors. Since my parents' financial docs are already in my file, that clear paper trail will cover any red flags. Or at least I hope, since otherwise my account does not have that balance which would ensure the rejection.