University au, rich kid Tengen pays for communal housing with all his friends. funsies au

Hopeless romantic Sabito gets dumped after a particularly bad relationship & decides to fuck off out of the city into a decrepit farm in the town his grandpa (Urokodaki) lives in. Impulse control isn't his strong suit. He misses his best friend really badly. fumbling around in the wild like some sort of hermit is a ...neat change of pace in his life. the tiny cabin that came with the property doesnt have a shower though. that sucks a lot actually.

couple different variants of mermaid aus, in general mermaids are a whole like actual THING. chordata> vertebrata> gnathostomata (aka, jawed fishes. here irl it splits into chondrichthyes: cartilaginous fish & osteichthyes: bony fish) speculative biology interest rearing its head. class of fish that happened to develop front halves that look strikingly like humans. ice thin excuse lol. theres also the usual magic half fish half human mermaid schtick, but i like the whole seperate class of sapient animals bit more

usually centered around a marine wildlife center, some well established aquarium that does marine research and wildlife rehabilitation; well-equipped to take care of mermaids in the event of injury or malice. depending on variant, staff and mermaid roles are moved around

based off the 2014 movie; Giyuu is visiting the seaside grave of his childhood best friend who fell off the cliff, ends up finding a capsule of an advanced mechanical alien species who needs help getting parts to repair itself. He names it Makomo, and ends up going on a wild goose chase for parts and away from the government, with the help of Sanemi & Genya

space au! Sabito gets kidnapped off the street one night and ends up in a spacer trafficking ring. humanity isn't in the space age and the wider galactic community have a strict no-contact rule for non-space age sophonts, so Sabito can never go come to Earth again. I like thinking of the spacer tech and Sabito adapting to a new environment with little understanding of anyone around him

lots of variants- for mainline Golden Light, Sabito gets shoved with a seal/ferret-like alien he bonds with and names Giyuu. Giyuu names Sabito in his own tongue too, it means 'Golden Light' after the G-type golden yellow star at the center of his home solar system. Association to both a gentle warmth and burning bite, like how Sabito's gentle with him despite his larger stature but fiercely protective when they're in danger

(real life reason: story vibe influenced by Golden Light (STRFKR) and i didnt want to forget au-song associations yet again. cant forget which song its associated with if they share the fuckin name lmao)

aus where characters are displaced from their original world, into the world of naruto

Team Sakonji: Tomioka Giyuu, Uzumaki Sabito, Orochi Makomo. Same generation as team Minato & team Chouza during the third war. On a mission Sabito & Makomo went MIA and after a few months of not finding anything, declared KIA. Giyuu is unaware that his teammates are alive, while Sabito & Makomo were kidnapped by a nutcase who intended to pull a Madara and manipulate them but they just killed him, his ramblings about becoming the Juubi jinchuuriki was extremely worrying though, and they ended up finding out about the Akatsuki group. Of the ancient manuscripts in the posession of their malicious saviour they decide that anything to do with uniting the biju is Extremely Bad, and create an opposing group 'blue skies' with the intent of protecting jinchuuriki. Sabito develops skill in fuuinjutsu from the stuff the nutcase had and develops a bunch of identity concealing seals, so none in their group are discovered even if their masks are removed.

Sabito's half Uzumaki, Giyuu's a Yuki; Kirigakure had the bright idea to pretend to send cultural exchange envoys as a guise to infiltrate and find weaknesses from within. Giyuu & Tsutako were orphaned and took the name Tomioka instead of going with any of the rest of their clan, Tsutako died, at age 11 Giyuu went with the cultural exchange thing without knowing it was just a front. Sabito & Giyuu become best friends, but two years later Uzushio is destroyed by the combined force of Kiri & Kumo. Here it splits into two universes:

Sabito dies in the fall of Uzushio: Giyuu is utterly distraught and feels immense betrayal toward his 'home' village, ends up pledging his allegience to Konoha after being cleared by a Yamanaka, he fucking HATES kiri & kumo nin for killing his friend in the total genocide of the beautiful island village. Trains vigorously and fights during the Third war, stationed where people can keep a sharp eye on him since he is a foreign nin, ends up befriending Kushina because as a jinchuuriki she's also kept an eye on (so nothing happens to her) and also because she knew what Uzushio was like, they bond over the loss.

Giyuu dies in the fall of Uzushio: Sabito is utterly distraught at Giyuu's death and the utter destruction of his home. He manages to survive to the end and once the enemy forces leave he tweaks the island's barriers so they can't break through them again, and since theres no one else but him and he certinatly wont be telling anyone how to break them, no ones getting in unless he wants them to. He also activates a few emergency island-wide seals, a preservation/stasis type seal that halts the decay of many things, and the outer storm barrier that makes it nigh impossible to even reach Uzu. As the last Uzumaki alive on the island, he scours anything and everything to do with fuuinjutsu and becomes a sealmaster over the course of 12 years. Mildly insane from the total isolation surrounded by the corpses of his village for all that time, hes covered in seals of all sorts. Storage, various forms of concealment, barriers, chakra control, elemental chakra manipulation, muscle reinforcement- and quite a few stolen from other villages. Once he mastered stelth seals he went out to retrieve seals stolen from Uzu and frankly just grabbed anything related to sealing he found they had. Konoha was by far the best grab, with Tobirama's work being well above anything the other villages had (stole). The Hiraishin and Edo Tensei were particularly interesting, and his Shadow clone jutsu being put to good use in his hands (you can learn so much faster with more brains on the job!). After some serious thought about bringing the dead back from their rest, Sabito follows Tobirama's wisdom and lets the dead stay dead no matter how much he misses them (he doesnt want Giyuu to see the shell of a human he's become). But the hiraishin dabbles in space-time, now THAT is fucking INTERESTING. but aside from all that, his personal masterwork is the Archive Seal. Other villages put so much effort into destroying Uzushio's seal knowledge for being too powerful, a seal that holds all the sealing knowledge Uzushio held and more, its the single biggest 'fuck you' he could ever create. Whomever bears this seal has access to a sealspace with a time dilation aspect, and access to a library of everything related to fuuinjutsu as well as the ability to add to it. Unfortunately for everyone else, hes not inclined to actually share. so. But! back to space-time seals, he becomes obsessed with them and dedicates all his time to that.

Nabbed a bunch of white-haired characters from other anime (and an oc), few tweaks here and there, bam now they're wayward Hatake who grouped together and made their way to Konoha where they heard some of the clan settled.
heavy fanon Hatake influence; originally from Iron, beast clan akin to the Inuzuka who has a clan-wide summons contract with wolves, pack-oriented, fangs, non-chakra users/civilians of the clan were farmers
though thats all history since the clan fragmented during the founders era, and the Konoha branch died out over the course of wars

Hatake Clan in order of youngest to oldest:

Orphan Sabito, same age/slightly older than Kakashi; taught seals by Kushina (and thus also Minato and Jiraiya a little bit) and was with Kushina as an extra sealmaster during her birth process/the Kyuubi Attack. Instead of letting Minato split the Kyuubi in half (ouch) to seal it in himself & die and also in his 3 second old son, Sabito seals the entirety of the Kyuubi within himself. Kushina's dying act is to seal some of her chakra within Naruto, and Minato managed to survive the whole ordeal. Sabito went into a coma from the strain of the sealing, and in said coma managed to reach an accord with Kurama because he sealed him for his safety, everyone else's was kinda secondary to Kurama's. Kurama was being controlled by some madman and idiot prodigy Minato's only bright idea was to rip the tailed beast in half with the intent to just die with one half of it and permanently ruin the life of his son with the other. Who the fuck put this dumbass in charge. Sabito wakes up from his coma as the guardian of a tailed beast, his & Kurama's acceptance of eachother displayed on his face as bright red whisker scars, akin to those on a kitsune mask.
(HC: all the kyuubi jinchuuriki have some number of whisker scars. Theyre formed as a sort of backlash from denying Kurama's chakra (denying Kurama, since he IS chakra), and are usually black/burnt-in as a result; Sabito's the first to have red scars, a well of active bijuu chakra)