Hey again! So, an explanation for thoss of you that are confused with the sequel right now, here's my thought process on why Midoriya doesn't recognize Y/n!
⚠️These could be spoilers if you haven't read Just A Little Bit⚠️
1. It's been a few years and they've grown up, they don't look like kids anymore like they did before. (Aka puberty)
2. Y/n has loads of scars that change her appearance dramatically, but keep in mind not completely
3. Mido's expirience with losing Y/n was extremely traumatic emotionally for him and sometimes traumatic events can cause a form of memory loss.
In Y/n's case, of course there's tons of damage to her, especially on her brain thus which is why she can't remember anything, so she must try her best to find things that will let her brain unlock those old memories, but it doesn't mean she'll have all of them back. Depending on who she trusts will depend on which actual she gets back.
As to why other characters don't recognize, it's the same thing with it's been awhile and they've grown up. Puberty be hittin different for everyone in this fic
Oki doki, I'm going to bed at my location! Goodnight my dearest supporters!