@JOA20 Yes, author intended to sell a book on natsucomi. Since it got cancelled, the first half of the book was posted in twitter and pixiv.
The author intends to get the 2nd half out too, but in a book. My guess is they'll put the book together and join the "air comiket".
For those unaware, a lot of DJ artists are sending their books directly to the big otaku bookstores like Toranoana and Melon books but promoting their stuff in twitter with previews and everything just like in comiket, but all online.
UPDATE: Author is going to publish the 28 page book including this story he wanted to put out for Natsucomi on pixiv booth.
We're going to get more of this soon.