My Hero Academia is set in a world where nearly everyone has developed superpowers, known as Quirks, leading to a society where being a hero is a respected profession. The story centers around Izuku Midoriya, a young boy born without a Quirk in a world where possessing one is the norm. Despite this, he harbors the dream of becoming a hero like his idol, All Might, the greatest hero in the world. Through a twist of fate, Midoriya is granted a powerful Quirk and gains entry into U.A. High School, where young people are trained to become professional heroes.

At U.A., Midoriya meets other students who also aspire to become heroes, each with their unique abilities. The school serves as a training ground for the students, who learn how to use their Quirks effectively while also grappling with the responsibility that comes with power. The academy is not just about academics, but intense practical exercises that prepare the students for the dangerous world outside. As they train, they also face challenges, including rigorous exams and internships with professional heroes, all while learning important lessons about teamwork and courage.

Throughout the series, My Hero Academia explores themes such as heroism, the meaning of true strength, and the balance between justice and responsibility. As Midoriya and his classmates grow and develop, they are pushed to their limits by both personal struggles and external threats. The series highlights the complexities of being a hero in a world full of uncertainty, all while showcasing the journey of young individuals striving to make a difference.