The series focuses on Izuku Midoriya, a young man who dreams of becoming a Hero despite being bullied by his violent childhood friend Katsuki Bakugo for lacking a Quirk. Both youths idolize one of the world's greatest heroes All Might, who they both met with Izuku being one of few to know of an critical injury All Might has been concealing from the public eye to maintain morale. All Might also reveals the nature of his Quirk "One For All" and passes it down to Izuku to succeed him after seeing the youth's determination in the face of danger. As Izuku begins his path to becoming a hero in attending U.A. High School alongside Bakugo and the friends they make in Class 1-A, a nemesis to the "One For All" users named All For One conditions his apprentice Tomura Shigaraki to destroy the current society and its heroes.