You know the saying 'the pen is mightier than the sword'? Well, that does not apply here. There are no swords, only quirks. Izuku doesn't have a quirk. But he does have a black pen. And it is damn mighty. Humanity has made a lot of mistakes. Messing with Izuku Midoriya was one of them. Now they'll suffer the consequences. And never again will anyone make that same mistake. They won't even try, They're not that stupid to try and challenge the one who defeated the symbol of peace.