That is what many of us think, but Moro doesn't like that. [They're approaching the town square and Souji has to take deeper breaths so he can keep talking and walking at the same time.] And not many people like to argue with a giant wolf goddess.

The barrier is controlled by those who brought us here and keep us here - the Malnosso. The world itself gives us these wings. Apparently it's a function of the original people here.