Mash No Himitsu Tokkun (“Mash’s Secret Training Regime”) [English], an hentai doujinshi parodying the Fate / Grand Order game, by Zhen Lu
That cover, oh man, so wonderfully obscene, lascive, compelling!!!
In this hentai release, Mash follows her gudao’s perversions, she adores butt plugs, anal beads, powerful anal and vaginal penetrations and huge creampies. All along, she sports ravished smiles and proud ahegaos, and please don’t think this is any form of mindbreak, the sex is consensual and they’re both, simply, huge pervs ^^
The drawings are much less amazing than on the cover and the numerous black bars censorship takes a fucking toll, but it’s still pretty good in my eyes
Thanks to Darknight for this one!
By the same artist (Zhen Lu, circle Comex), I also share the retouched Atsugari Na Joou-sama and Fuchou No Sakusei Ryouhou.
And now, the download & gallery links 
Open the Complete Pictures Gallery
Download the Free Hentai Manga in a Zip file
(30 MB, 22 pictures, English)
Or you can also use the Alternative:
Zip Mirror #1 – or – Zip Mirror #2 – or – Zip Mirror #3
Would you believe that the cover outfit is a canon design?
It was made by ReDrop no less:

Jebus Hentai Christ, this is CANON?
(and by Redrop?)
Yeeeeeeees
It is a kick-ass cover, just wish the rest of it matched.
That was a long anal bead chain, any longer and it would’ve been a plumbing snake.
He wasn’t satisfied with just the rectum, wanted to prep the large intestine as well.
D