Buy the original!
DLsite: https://www.dlsite.com/maniax/work/=/product_id/RJ213124.html
DMM: https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_120777/
Digiket: https://www.digiket.com/work/show/_data/ID=ITM0163704/

No scat version: https://e-hentai.org/g/2521422/809d7bb9c8/
Extreme scat version: https://e-hentai.org/g/2521420/fe12013196/

Chapter 1: https://e-hentai.org/g/1700576/f67f2442b4/
Chapter 2: https://e-hentai.org/g/2033210/ceb4689393/

My website: https://deerenbung.neocities.org/

Phew, editing this took me twice as long as I thought it would. Thank you for your patience.

You might know that each site Gemuo sells this on has slightly different levels of censorship. I didn't realise until recently that it's not just the level of censorship, but what gets censored that changes. I've painstakingly combined the uncensored bits from all three releases to make this the least censored edition out there. I've writen a post on my site with the details for anyone interested: https://deerenbung.neocities.org/posts/12-04-23-chapter-3-part-1-censorship

Thank you as always to Chaos-x for helping with the editing. The series would not look nearly as good without his hard work.