fae saiki au fae saiki au fae saiki k au
(ok ik fae aus r generally way overdone, but hear me out ok) (also. we’re on tumblr. nough said)
-He is technically mostly human, with the fae coming through on his mothers side. It usually shows up lightly in the children of the saiki line (his grandmother aging slower, his mother gaining supernatural powers when shes angry, his brother being incredibly intelligent) but it came out incredibly strong in him for whatever reason
-his limiters are incredibly complex structures of magic etched in iron
-in the modern day fae/general magic still exist but mostly just in the way it does in the saiki family - or in that one post about the coworker who can make excellent coffee and everyone having incredibly mundane superpowers. the belief for it exists widely in the same way modern folklore does - most people dont really believe in it (but better safe than sorry.)
-he still generally makes his friends in the same way as in canon - they do something nice/are friendly to him, he does something nice for them as a result, then ends up sticking around with them.
- he hates owing people favours, because favours owed by him can be extremely dangerous, so when people are kind to him he insists hes gotta pay them back - fae instinct also comes through strong in him, and it influences this as well. when asked by someone who knows his heritage, he will insist this is the only reason he spends time with his friends - and it is at least part of it, as he can’t lie, only obsufucate, but when asked if he enjoys spending time with them, he will noticeably dodge the question.
-kuusuke has mostly the same feelings towards him as canon - he often plays on kusuos greater fae-related weaknesses in their challenges, which can be as simple as flaunting the iron content in the machines hes sitting in, to try and get kusuo to commit a great fae offense that his blood will punish him for, while kuusuke gets to sit nice and pretty with only a flu as a consequence. It also adds a greater layer of danger to all of their fights - theyre provoking more than just each other when they fight, ultimately
-saikis primarily a shapeshifter type fae, but he has many powers beyond that. hes beholden mostly to shapeshifter traditions. (if he were to ever marry whoever you ship him with, they would need to undergo a fae trial - they would have to hold him as he transformed into various painful things; fire, giant cat, etc etc. if u headcanon him as having romantic attraction this is part of why hes so reluctant to date or express it: he would likely harm whoever it is significantly during this trial. also its just like. a lot of commitment)
-saiki is adverse to most of his friends because they also have magic blood poking through them and he doesn’t want to draw attention - one fae kid is bad enough, a fae and an angel descendant? theres only so much people can overlook before their human hindbrain will prick up and go danger!! (or their magic brain will do the same, which can provoke instincts that will cause.........problems)
-the angel descendant im referring to there is actually akechi - it comes through in his almost omniscience and his thirst for knowledge, in this au one of his far far ancestors was one of god’s scribes, and he has the drive to know all he can (he also has a strong drive for worship, and while saiki’s far from a god hes certainly powerful and all-knowing enough to ping that radar. this is a part of why akechi was so determined to know all he could about saiki, and prove he was part-fae)
ok ok this is. long enough but i might write an actual fic about this i still have a bunch of ideas tbh. ill have to do a butt ton more research tho. hmm.........