@trexfulan:
Short version: Take a mangaka who's best-known previous work was a really long-running seinen martial arts manga (meaning in this case, among other things, a tendency towards a
much more realistic art-style than normal). And then have them pen a decently gritty high-fantasy story.
It's not so much that there's a
lot of gratuitous gore, quantity-wise, considering the genre, in fact many of the fights (of which there are many, as one would expect) are bloodless: Moreso that that gore which there
is is sometimes very vividly rendered.
It should however be noted while on the subject that some of the stuff in this is fairly dark. Slavery, racism, implied rape, that sort of thing: Not tastelessly handled, just that the setting is sometimes rather dark.
Edit to add disclaimer: I am only 18 chapters in out of 29 translated as I post this. I would be somewhat surprised if the gist of it changed, however. This is a decently seasoned author and artist who, though not without their own weaknesses here and there, by all appearences knows what they're doing and are well in control of the story—which is like the grandest running joke of this whole affair: This meme-fest is in many ways one of the most... professional-feeling and well-put-together...? ...isekai manga out there. Some of that by process of elimination, possibly, but still.