Did you just reupload my upload? Just in a smaller resolution? Some of the cut-off parts on the edges of the pages are on the exact same spot on my scans. Example, on page 9, the uneven crop area at the the bottom right of the page shows a slanted black line that I didn't catch until I took a real good look at it just now. It is exactly the same as my scans. Same issue on page 11. Page 2 has a dot at the bottom of the page on the bottom left panel. In the book, it's in there, but when I was cropping that part I didn't realize that there was a blank white space between the edge of the page and that dot.
Also, to my knowledge, Kiasa hasn't released it in stores yet, nor has a digital versions as of now. So currently, the only way to have gotten this was if you attended comiket or got someone else to attend the event.
reivaj_oelra: the upload you saw on NH was Devildie's. ***** is an aggregator site for this one (though there's no affiliation). A good rule of thumb is that if you see something on NH, it's probably on here.