Midoriya inherits the superpower of the world's greatest hero, but greatness won't come easy. 
What would the world be like if 80 percent of the population manifested superpowers called "Quirks"? Heroes and villains would be battling it out everywhere! Being a hero would mean learning to use your power, but where would you go to study? The Hero Academy of course! But what would you do if you were one of the 20 percent who were born Quirkless? 
Endeavor and Dabi's battle rages across the city as Endeavor fights to solidify his new position as the number one hero. Hawks provides support, but where do his loyalties really lie? Midoriya experiences a cryptic dream about the past--what secrets do the previous wielders of One For All have to show him? Then Class 1-A's joint battle training with Class B begins.