So... I read the 90 translated chapters of the novel...
And I love it!
All in all it was great up until where I was able to understand the translation (chapter 84 or so), but as stated here and in the LCD at Novel Updates, the art doesn't fit the stories at all: the novel is pretty comical (as in it's at times almost a parody), which I guess is by what they decided in this chibi-like drawing, but what he does is, often, quite brutal (though that may not be the best word to describe...).
In the LCD they commented about another (discarded) prototype, to anyone interested:
https://view.ridibooks.com/books/1561003679