There's totes some slime ones where they don't drop the slime bit quickly, or even at all, though. Tensura's pretty famous for jumping the sharkslime ASAP, but there's like... well over a dozen slime MC stories out there these days, and some of them just stick to being a slime.
... dropping the gimmick pretty early happens a lot mostly due to a combination of it being easier to write humans, and it being an easy way to sidestep dysmorphia issues and whatnot. It's usually being kinda' lazy, basically, but hell, I ain't gon' blame someone for being a lazy writer if they're just doing it for fun, yeah? I get why folks do it, even though it's usually pretty disappointing, heh.
Yeah I don't blame them. It's a lot easier to savage and criticise something than it is to create, and if a writer isn't having fun writing then there's not much point. It just seems a bit self-defeating how many isekai stories basically just have a two sentence mention of "oh yeah I was from Japan now I'm not" and then never bring it up again, or jump the slimeshark and abandon their core premise to tell another story entirely almost immediately. Or worse still - when the actual story is AMAZING and then they just kill it to basically make another Harry Potter goes to Hogwarts/Adventurer's Guild story.
She Professed Herself Pupil of the Wise Man and The Reincarnation of the Strongest Exorcist in Another World both kill me for delivering an absolutely killer premise in their backstory and then pulling the rug out from under my feet to deliver standard isekai. Not boring shows or bad shows by any measure, it's just a pity for them to show they are capable of telling an awesome story about an elder merlin sage founding a kingdom or a freaking dragon rider terrorising the spirit world before being betrayed by his own government and protege... And then deliver a moeblob adventure guild ranking up story or Harry Potter goes to magic school (even though they are already an apex spellcaster?). It's a bit like making a movie where Oppenheimer gets isekai'd into primary school and spends hours detailing Oppenheimer's struggles to build a nuclear bomb whilst trying to not stand out by deliberately failing elementary mathematics or navigating the school politics of Susie, Sally and Billy
It's seriously good advice I heard from a writer once; if you look back and realise your backstory is a better story than your story, write that story instead
I think I'm pissed off at all isekai for existing when Grimgar just got unceremoniously dropped.
I'm sure it'll come back... Any time soon...
Also, Reincarnated As My Own Reflection sounds kinda awesome, like a reverse Jojo or that one series with the vaguely horror themed reincarnation/stand type abilities that I thought was called something like Aiki but that's the jujitsu perv master one.
Now that I think about it; I can't think of many horror isekais where they point out just how horrifying being isekaid could be
In other news I finally watched eminence in shadow s2 and kingdoms of ruin. New season of eminence in shadow understands it's a parody now; first season had that one punch man adaptation problem in that it really struggled to understand if it was a standard battle shonen or a parody of standard battle shonens. Kingdoms of ruin on the other hand is like someone taped a bunch of razor blades onto a tennis ball for ultimate high stakes tennis. It's quite as edgy as something like redo of healer but it is pretty edgy nonetheless. Every character is a jaded asshole or passionate arsehole; if they're a good person, then they're going to suffer terrible terrible death 1 minute later. I don't know where the hell the show is going as right now it's this weird mix of an overpowered amoral protagonist drifting through plot, great world building, incredibly high edginess... And I think the first time the protagonist is actually going to make a decision which affects the story is episode 4 or 5.
Eminence in shadow s2; edgy overpowered protagonist accidentally creates a secret organisation to kill a demon organisation he isn't aware actually exists. Whereas in season 1 it took me a long time to realise the protag wasn't aware the org existed, s2 makes it abundantly clear he's just winging it and essentially larping (and assuming all of his "friends" are larping too). It's got the same joke as Overlord where everyone assumes he's 300 IQ seeing the future but really they're just projecting intelligence onto someone living in the moment. S2 definitely a considerable improvement in quality to s1, both in terms of animation and comedy. The protagonist ends up adopting a fake alias "John Smith" and going to war with his own organisation. Everyone assumes this is 5D chess but really he's just having fun
Kingdoms of Ruin; edgy child is mentored by his adopted witch mum. Humans discover science and realise with science they can look eye to eye with witches. Emperor of humanity awakens a massive inferiority complex in humans and they decide the most logical thing to do is exterminate all the witches. Kid watches as his adopted witch mum is executed. Kid is imprisoned for ten years in isolation.
Fast forward 10 years and the witches manage to break the protag (now a man) out of prison, where he immediately goes on a rampage vowing to exterminate all of mankind. Things get only more complicated from there as the protag realises there are still surviving witches and the possibility to resurrect his witch mum... Yet does not ally himself with the surviving witches either, as he knew his mother was exiled from the witch kingdom for the crime of teaching a human child magic. Given that the show is Kingdoms of Ruin, I'm willing to bet the end of the show is going to have both human and witch kingdom annihilated.
It's a really weird show. I'm going to keep watching it for now because I like how weird and all over the place it is.
Hilarious reviews: People have criticised the show for how unrealistic it is to have the human Emperor so easily convince all the humans that it is necessary to exterminate all of the witches, even though the witches have always been helpful to humanity. I really wonder if Japan has the same expression of a "witch hunt" that the English language does