[Totally NON-canon]

Shigaraki managed to get captured, but instead of putting him in prison, All Might WAS THERE(!!!!), so he thought about leaving Shigaraki under his own care to see if he would give up being a villain. And it worked, now Tenko Shimura is now like All Might's son

One day, All Might took Tenko to visit Izuku, just to see if they got along