AU where 1-a are a league of murderers that kill only those that bother them or get in their way, for instance, a pervert that harasses one of the girls (not mineta though because i need easy conflict)
it shall be called "class of killers", here's how the world works
it started when iida snuck out to hozu city to commit murder and todoroki and deku went with him (either to help him or followed him to prevent him from getting killed i'm not sure) and they ran into stain with plans to kill him but this time they were successful and the police found his body the next morning
but since native was there (remember him? me neither) they had to kill him too so he wouldn't snitch on them, they apologized the whole time they were bludgeoning him to death
the rest of 1-a ended up finding out and swore to secrecy, however, a brat from general studies finds out and tries to blackmail them, either the girls become his harem or everyone finds out about the stain incident
so naturally six angry guys and one guy all the girls trust(shoji) murder the general studies brat, and to get rid of the body they dig a hole, put the body in it, and have ashido spray acid on the body until it's gone
they were the first, second, and third victims of class 1-a
over time more bodies pilled up and no one suspected anyone in the hero course
everyone in class 1-a has killed someone, helped hide a body, or both
they once pulled this crazy stunt where they hid a body in the walls of a classroom of a teacher they all hated so they could watch said teacher's reaction to finding a dead body in the walls and because they knew the teacher would be the first suspect
aizawa doesn't necessarily help them kill or hide the bodies but he doesn't tell anyone about their "hobby" and gives them alibies when they have none
when eri came to live with aizawa as his adopted daughter, everyone began planning how to teach her their ways without letting her know that they were teaching her how to murder
they would subtlety tell her how to get away with murder in ways that you would really have look into in order to find out
for instance, when eri's pet fish died, she was about to flush it down the toilet when koda stopped her
"eri, don't flush it down the toilet, it's just disrespectful to the animal, you shouldn't flush flesh of any living thing down the toilet, it will clog the pipes and the sewer workers will find it, it's best to bury it in the yard and let the earth reclaim it, that way if you or anyone else digs it up, they won't see anything they won't like" "oh, ok!"
koda was telling her to bury a body and not chop it up and flush it down the toilet because sewer workers could find it, figure out which pipeline it came from, and use it to find out who the killer was
there was this one time when momo and eri were making dinner together and momo cut her finger and used it as an opportunity to show eri that blood combined with luminol will glow under a backlight and you can get rid of the blood entirely by cleaning the spot with hydrogen peroxide
mina taught her that "stilettos" is Italian for "little knives" because the heels have metal or metal alloys in them and can actually pierce a human skull
hagakure taught her how to properly manage makeup and to pay attention to the expiration date and stuff like that, but also about the toxic materials in makeup and how easy it is to poison someone with lipstick and stuff like that
aoyama taught her about clothes and where you can hide weapons in them
shoji and sato taught her about how much force it takes to injure someone with your bare hands and some alternatives in case you weren't strong enough to break bones like they were
everyone taught her something about how to kill or hide a body
it wasn't until she was sixteen and hiding overhauls body with kota, satsuki, and katsuma that she realized they had been preparing her for this very thing ever since she came to UA at the age of six after being rescued by deku and mirio
this was really fun to make, tell me what you would want to happen in this universe
