Finally, an Isekai that isn't too heavy on RPG elements, hell I think the RPG elements doesn't exist at all, other than the usual adventurers guild/associations stuff. I was getting sick and tired of characters going "woah, a status screen!?!?!?"
I love what he did to the adventurers. I suppose if you can't kill them, just totally disable their bodies and drag them into prison. Works pretty well.
A nasty little thought I had was that the militaries of our world could use white phosphorus on the adventurers if they cause trouble. Huge war crime of course, but a burning chemical with toxic fumes that it is literally impossible to put out on a regenerating body would definitely make them take our world just a little more seriously.