No Reason To Cry Wolf, Right?

What if Izuku was the son of All For One?
What if Shigaraki was a caring and slightly overprotective big brother to Izuku, hell-bent on making sure that he would fix their society so that way he and Izuku could live happily in peace, despite the situation they were forced and born into. And despite the lies, they were told their entire lives?
What if Izuku was still quirkless, despite his father's immense powers?
What if Shota Aizawa was Inko's brother?
And What if one turn of events could decide the fate of the hero society itself?

I do not own the fandom nor do I own the characters.