@Ainzell that's supposed to be a stereotypical yankee gal, a manga that features one off the top of my head is Yandere kanojo and maybe toradora, but the sword is never a main thing in either
For the words thing, I think the standard method is using liquify and blend modes in Photoshop
Edit: oh yea as the dudes below pointed out, I forgot that the shape of the book is pretty simple so you can just use perspective
It says 第0话 at the top so doesn't that mean that this is a prologue and should be chapter 0 instead of chapter 7.1? Or are these normally still treated as 7.1 because of the release order?