Hello, I started uploading today so please excuse me and let me know if I made a gaffe somewhere.
What I have here is roughly 10% of a collaboration book distributed at Kouroumu 10, with everything not made by Nanatsuboshi/7 removed. It was exclusive physical distribution for this event.

I have no clue how to use the Bounties section yet (or even if anybody even uses that anymore), but if you happen to have the full book, either a physical copy or a scan - please contact me about it, easiest way to reach me would be by Discord at "gamballa_"

https://www.pixiv.net/artworks/46073136
http://nanatsubosi.web.fc2.com/mamizo/index.html
https://www.melonbooks.co.jp/detail/detail.php?product_id=70800
http://www.toranoana.jp/mailorder/article/04/0030/24/30/040030243024.html

Base +33, 流萤啾啾 +39, sevensixtytwo +6