Chigoku No Guillotine Seisai [English], by Nachisuke
When you’re in a job where the punishment for failure is large scale rape, whether you want it or not, you end up a masochist, apparently ¯\_(ツ)_/¯
It’s one of those stories that only work in the hentai world, a female ninja is caught, the punishment is heavily sexual, plenty of pounding later she’s loving it, comes back for more, etcetera.
I’ll let you be the judge for the scenario, but in terms of art, it was original and pretty well done, just for that I deem it shareworthy ^^
It’s been brought to us by Renne, Amalgam and Benito, from Shuten Doujin Translations, thank you!
By the same artist, I also share Yandere-san ni Ame ga Furu.
And now, the download & gallery links 
Open the Complete Pictures Gallery
Download the Free Hentai Manga in a Zip file
(24 MB, 25 pictures, English)
Or you can also use the Alternative:
Zip Mirror #1 – or – Zip Mirror #2 – or – Zip Mirror #3
Wait a minute, I don’t remember this part in Tenchu Stealth Assassins.