Pack of 2 tanks by the artist Kawana [English, 404 pictures]
Do you want to kill 90% of the mangas of this niche? Have the girls wear welding pants (thick, resistant, hard to take off) with metal belts, instead of miniskirts with slim panties. There, no way to surprise-rape them anymore. We could even make it an anti-isekai series: “I Was Hanged From A Tree For Raping A JK But I Came Back To Life In A World Where Women Wear Welding Pants And I Can’t Do Anything To Them Anymore”
Ahem, sorry, I digress. I gathered here two tanks by the mangaka Kawana:
– Injya Kikou ~ Ijou Ai Ni Midare Kuruu Otome (themes: a weird ancient cult with a twisted keikaku, evil spirit possession, highschool girl rape and mindbreak, a weird happy ending.)
– Shokushu Chikan Densha (invisible autonomous chikan tentacles, a cursed bloodline, a weird happy ending. In this one, although there’s rape, in majority, women like the sex.)
I’m not a fan, far from it, but I figured those 2 volumes don’t entirely suck within their specific niche. The art’s average, the story’s weird but there *is* a story… Who knows, if you’re into that niche stuff, maybe you’ll find it to your tastes ^^ (Otherwise: don’t hurt yourselves trying to read it lol, move on.)
Release credits are for Kaigen, Potato, Vilis, Tester and Eclipsoul, thank you!
And now, the download & gallery links 
Complete pictures galleries:
Injya Kikou ~ Ijou Ai Ni Midare Kuruu Otome –
Shokushu Chikan Densha
Download the Free Hentai Mangas in a Zip file
(198 MB, 404 pictures, English)
Or you can also use the Alternative:
Zip Mirror #1 – or – Zip Mirror #2 – or – Zip Mirror #3
Knowing hentai, some guy would simply download a mystery app or make a deal with the pants demon to become a pair of welding pants to molest women as they wear the pants.
Has happened, even outside hentai. haha