Board Thread:General Discussion/@comment-30388913-20161101185429/@comment-28592066-20161210233509

We've already had a long discussion regarding fun girl. We can only guess but my guess is that you're correct and that she is Megami's sister - though only in a parallel universe.

I don't think you'll encounter her through normal gameplay - you'll probably have to do a lot of extra stuff to get to her.