Yuusha Ni Tensei! Harem Party Seikatsu?! (“Reincarnated Into A Hero! And A Harem Party Life!?”) [English], by Kousuke
Here’s a funny (and doesn’t matter if it’s predictable) take on the reincarnation isekai trope: formerly a middle-aged loser, a man is reincarnated as a Hero in another world. That was a goddess’ apology for giving him an extra-bad life before
Perhaps even better than a Hero’s status, our male MC is surrounded by horny female team members, all 3 of them sexy, busty, and available ┐( ̄ヮ ̄)┌
There’s a bit more than that to this release, but not that much, it’s mostly good sex with the 3 girls, one at a time, then together, with a little Demon Lord bonus ^^;;
It’s been released by Dark Knight, thank you!
By the same artist, I also share Risemara Maou Ga SSR, Fushigi Fushidara (217 pictures), Succubus Joshikou De Sakusei Jisshuu ~ Kyouzai Wa… Ore! and BBV – Be With BB On Vacation.
And now, the download & gallery links 
Open the Complete Pictures Gallery
Download the Free Hentai Manga in a Zip file
(14 MB, 30 pictures, English)
Or you can also use the Alternative:
Zip Mirror #1 – or – Zip Mirror #2 – or – Zip Mirror #3
Rather predictable, indeed. Also, this may be IMHO, but, even though Hero-kun was a middle-aged adult in the real world, he seems to have been reincarnated in this new universe as a … wait for it … “shota”.
Ah, well … if a continuation ever shows up, I’ll try it out.
I know it was a joke but glasses really have been around since the Middle Ages (476 – 1453). The first glasses were made around 1290. My uncle was an optometrist and it’s amazing what you pick up.
Well, now I feel stupid. I now recall having read something about glasses in the middle-ages somewhere, now that you’ve mentioned the topic. But that had completely disappeared from my memory before, my bad!
That said… I can’t even imagine life in an era before dentists and glasses manufacturers, brrrr.
Makes you wonder what the future holds. One of your distant descendants will someday comment, “I can’t even imagine life in an era before karma techs and cognizant connectors.”
Doubting
I have yet to find where I saw it, but there was an estimation that the suicide rate in the Roman empire was higher than in other developed preindustrial societies, which was linked to the poor flour production methods, eroding teeth far too fast, which in turn resulted in a much greater number of dental problem among the citizens. Imagine grown up adults, not old yet, enduring unbearable pains from inside their mouth, with zero perspective of a solution in sight, save ending themselves, brrrr.
So, yeah, we can live without karma techs (proof!), but not without dentistry
Wait until you learn that karma technology increases your chances at getting Paizuri!
Tiny man isekai, little potential.