Theory: some High-Ends use the corpses of past OFA users
There aren't tons of High-Ends. They can't be mass-produced so easily, and there's only one that's blatantly female, literally named Woman and with a tall, defined figure
Maybe Woman's original identity is already confirmed, but... she's similar to Nana in build, isn't she?
It's hinted that All For One actually kept Nana's corpse. How, 20+ years later, could he give Tenko his grandmother's pristine hand? Is he just keeping their hands? Or their actual corpses?
Also, when looking at corpses to give multiple Quirks to, One For All users are the best for this. Having inherited One For All, their bodies had maintained multiple Quirks when they were alive, even if they couldn't use more than their natural Quirk and One For All's physical ability. And to their bodies, One For All doesn't count as just one Quirk; the natural one, and Yoichi, are already too much for a human. But Shinomori shows that it counts each previous user's Quirk, on top of Yoichi's and one's own natural one.
Their bodies adjusted to holding multiple Quirks, and when they were alive, they didn't become deformed or lose brain function. They were perfectly fine, and only had shortened lives—but that doesn't matter as corpses.
Nomus go brain dead when they have multiple Quirks. But the past users didn't, being completely fine, making them perfect for Nomu development.
High-Ends can think. They're all physically powerful, and One For All users make the best basis, even from leftover embers and physique. So why not use that great base to make the best outcome Nomus (High-Ends)?
POV you are an AFO minion and you wander through one of the labs Something about the experiments makes you think they are more conscious than mere dead bodies should be
My take on why and how AFO has Nana's hands so well preserved even after so many years
So now that I know that Kudou is a nosy chismoso i wonder if he looked through everyone else’s memories?
Yoichi’s memories: damn, you live like this?
Third’s: [not sure actually just himself through Bruce’s pov] So, that’s what I look like from the back? Huh more of me… oh me again. That’s sweet thanks Bruce I’m flattered ☺️
Hikage: [actually quite peaceful with the occasional jump scare of Banjo]
Banjo: [probably the most fun, and we see him punking En!]
En: :(
Nana: :,(
All Might: [ he replays AFO getting his head punched over and over] >:)
Something I made in a post that I think'll be lost in the texts + expanded a bit more
These panels are chronological events following AFO's pursuit of Yoichi's Factor.
AFO could tell if people were related through a Quirk. AFO and OFA also are connected to each other. In Kamino, AFO could confidently tell All Might that OFA had been passed on, so all that All Might had left were leftover embers.
When AFO killed Kudo, he asked where Yoichi was. He knew Kudo wasn't the holder of Yoichi's Factor at that time. He also realized when looking at Yoichi's hand that Yoichi's natural Factor was so weak he hadn't registered its existence. This implies AFO could sense Factors since he was young, and Yoichi's natural Factor never stood out to him.
Below are three panels of Bruce (right to left). Bruce fought, AFO killed him, and looked away in disinterest.
When he beat down Bruce, he already had a sense that Bruce didn't hold the Factor anymore. That's why, rather than yell in his face to figure out where it is and interrogate for a long time, he pulled up his corpse to inspect him better.
Bruce's corpse isn't resisting anything. Look at his feet; AFO literally dragged him. Bruce is already dead. Yet he's looking for something from him.
Bruce doesn't have anything for him. Nothing AFO wants.
When he looks away, he's dismissing Bruce, because Bruce doesn't hold Yoichi. AFO is wondering where Yoichi is, because he knows now that he's out there somewhere. Thus the pensive look to the wind.
After Bruce is killed, AFO and Garaki meet for the first time. Shinomori has Yoichi at this time, and AFO never comes close to him, so AFO is lost. He doesn't have any leads, and Yoichi has vanished.
Now that he knows Yoichi can transfer, it's possible for Yoichi to be kept out of his reach for the rest of his life. So meeting Garaki and having access to Life Force gives AFO more time to search.
Yoichi is still missing for 18 years though, because Shinomori is in hiding. AFO couldn't find him during the Fourth's turn.
This is why, when he encounters Banjo, the Fifth and active wielder of OFA [Yoichi], AFO is smiling.
It's been a long time, but Yoichi's in reach again. He knows where he is now. And this is the first time he's encountered the current holder.
Thus his shock.
[Yet... you never behave as I wish.]
It was the first time a Quirk wouldn't let itself be stolen. This was AFO's first encounter with this wall: it doesn't transfer without the holder's consent, and requires willpower stronger than all the holders combined to override that.
The holder is never going to give him that consent. To override the collective willpower, he's going to need something greater.
Meanwhile, look at Banjo's arms. Shinomori is the catalyst to tip OFA over the edge, that an unprepared vessel will be destroyed by how strong the Quirk is.
Banjo's arms are both messed up below the shoulder, just like Midoriya used to be. And like Midoriya uses Blackwhip to reinforce himself and stay standing, Banjo uses Blackwhip to hold his fist / arm together. His hand is being wrapped to stay in a fist.
(What I think is) The reason the limbs turn red, and then purple, from breakage, is a matter of blood vessels. Small, itty bitty, fragile things.
Using OFA breaks the whole area, from bones to blood vessels, causing internal bleeding. Thus the redness. But breaking those vessels again in a second go turns the area purple, because it causes instantaneous internal bruising.
But En wasn't ripped apart by using OFA. There's a cut on his thumb that lines up with the path of destruction; AFO sliced him in half. Otherwise, he wouldn't have that cut if it were just OFA.
It's hidden by the text in [... you never behave as I wish], but depending on where you see this chapter, you can see he got cut on the thumb. It's clearer where we see Nana take his hair from him, in [I only want... to make you mine!]
I have a post in drafts about En being cut in half rather than it being because of OFA, but I also hit an image limit, so I'm gonna end here. Ta.