okay so I went on a walk and my brain started rotating the Merstars AU SO hard so I'm just going to yeet a bunch of random bullet point thoughts that I came up with and see what comes out of it-
- the "world" the AU takes place isn't really like "real" life and is instead a super huge archipelago with hundreds of thousands of islands of varying sizes and kinds
- Mers and other various Sea Magics are pretty well known as A Thing That Exists. Is it accepted? Depends on the location and the people, and Mer Hunters are unfortunately a pretty common thing, but it's slowly started dying out. This is actually thanks to Speedwagon since after Jonathan's death he started trying to use his influence as a Very Important Wealthy Merchant to change public opinion, and it's actually been working
- Jonathan was a pretty well loved and very social member of the mers. He wasn't their leader by any means, but almost every mer in the archipelago knew about him, and his murder pissed a LOT of people off. Luckily thanks to Speedwagon, since then relations have gone from "it's on fucking sight" to "don't approach me and I won't approach you"
- Morioh is one of the more isolated islands and a bit of an exception to the above thing, being the most accepting island in the whole archipelago. Honestly, at this point like half the town has at least a little mer blood in them, but they are primarily human passing. There are a couple of full blooded or half blooded mers that hang around, but Josuke was one of the first ones born in the town in a long while
- currently debating how exactly the Morioh Trio are gonna be, since I want them to be a "full blood, half blood, human" trio for the funnsies, but other than Josuke I don't know which should be which. My current thought process is 1) Okuyasu is the full blooded and when he was younger he had a run in with Hunters which is where his scars came from since his dad more or less just fucked off and left him at their mercy at which Keicho had to save him which led to the two of the moving to Morioh, Koichi is the human and is Their Little Guy, is super familiar with how to work around mers and climbs them like a god damn jungle gyms, or 2) Koichi is the full blood and a really small mer but still Big for humans, he's a cuttlefish, got separated from his family when he was little which led to him being adopted by the Human Hiroses and Okuyasu is human and the resident Normie Guy, he's recently moved to Morioh and is getting used to how Positive human mer relations are here
- still trying to figure out how the Stand Arrows work, since Stands..... aren't really a thing now. Probably some kind of super powerful Sea Magic thing going on, maybe turn partial mers/humans into full blooded ones?
- the "Italy" of this world is a collection of islands that are under Passione's control, aka a group of pirates that have a literal fleet. Diavolo and Doppio are brothers, with Diavolo being a half-mer (maybe lion fish? I'm still deciding tho) and Doppio being a full human. Doppio is the face of the operation, but his brother is always lurking in the depths below the ship and even makes a couple appearances as the True Boss in human form. Trish is by extension 1/4 mer and they want to kill her so the truth about Diavolo won't get out
- Passione, despite all the shitty stuff they do, is actually a surprising area of Human Mer teamwork. There are a lot of hybrids and even full blooded mers to the point they're almost the majority. For the most part people don't care what you are as long as you get your job done, and honestly if what they did wasn't drug trade and trafficking, they'd be pretty cool
- the Bucci Gang don't have a whole lot of mer blood, and any they do have is pretty distant to the point they're almost human save for a couple little features (they also don't get full transformations), with the exceptions being Trish and Giorno. Trish I've explained, but Giorno is...... Really Really Weird with what he is. His birth mom was a mer, but Dio had mostly been using her to try and lure other mers so by the time Giorno was actually born she was killed. Giorno was then taken in by the Shiobana's, which obviously sucked ass, but he was able to pass as a human for a shocking amount of time because Sea Vampire Genes fucked with his aging, so he also looks a lot smaller than he should be. He's also been forced to stay in his "human" form for much longer than is strictly healthy which ALSO fucked with his size and health
- Giorno is gonna be a giant sea snake, because I think it'll be funny because That's The Traditional Sea MonsterTM. Maybe during the final fight with Diavolo he gets shot with the arrow and falls off the ship all dramatic and everyone thinks he died but SIKE he suddenly grows to full Absolutely Fucking ENORMOUS Size And Kicks Ass
- Jolyne is a siphonophore, I don't make the rules, she's Really Fucking Long
OOOOOOOOOOOOOO
I love the idea of Risotto having the power of Spiney. If I can throw my own two cents in, my first idea was to make him some kind of sea urchin, just to give him a little bit of poison, but the idea of combining that with some pufferfish is too goo to pass up. Maybe for some Extra Fucked Up Horror Bits, the spikes just kinda..... slide out of his skin. He doesn't puff up very much because of his size so just looks like hundreds of needles are sliding out of his skin (it wrecks absolute hell on his clothes though, which is why he prefers to wear loose fitting clothes if he has to (cough skirts and capes cough)). Maybe to get away with more bits of transformation, he could have some mer blood in her? Not enough to full transform, but enough to give him some of the abilities, and to explain why he's So Goddamn Tall
For Prosciutto, technically Fugo's already a reef stonefish, but the sea has no shortage of poinsonous animals to pick some, or we could even just. Make him a different kind of stone fish. And Ghiaccio is just one big fucking Y E S. This man is basically immune to any kind of cold and he's living for it. With Melone, I personally have a..... h u g e bias becuase I Fucking Love Manta Rays, and for shits and giggles I lowkey wana give him little antenae nubs Just Because. He's also the team naviagtor, but it took some time to figure out how to explain his Vibes to everyone else
With Formaggio I just had. The funniest idea, but in order for it to work he's going to need to be at least a half blooded mer: what if his mer transformation makes him smaller. With almost every other mer of his age, they would grow to at least some amount, but because of the kind of fish he turn into he ends up shrinking down instead. It's super helpful for sneaking him into places, but also a bit of a sore spot for him
And while I'm similarly lost to what to do with Illuso, you read my fucking mind with Pesci. Maybe he and Prosciutto were part of a family that specialized in hunting mers, but for some reason or another the two brothers ended up breaking off (Prosciutto thinks it's very ironic how things turned out for them). And despite his nerves and fears, Pesci is actually really good at hunting and knows a..... concerning amount of things about the subject
you know that one friend who knows Way Too Much about how to kill a person? Yeah that's Pesci but specifically with mers. For shits and giggles I like to imagine that he's surprisingly Calm whenever he talks about the best ways to hunt, corner, and secure various kinds of mers. Like, he knows the best ways to hunt one with spines vs snake like ones vs very fast ones, etc etc, which leads to exchanges like:
Pesci: *explains something or other about the specific of dismembering a mer to maximize how much you can carry back while still priotizing the best parts*
Risotto and Formaggio, the only blooded mers on the team who didn't know that there was a specific set of glands in their bodies that was worth more than they made in a year that MANY people would kill for because it makes really nice perfume: well okay then :)