Izuku Midoriya was just a regular middle school student in a world where people with superpowers known as "Quirks" are the norm. However, he dreams of one day becoming a hero, despite being bullied by his classmates for not having a Quirk. After being the only one to try and save his childhood friend, Katsuki, from a villain, All Might, the world's greatest hero, bestows upon him his own quirk, "One For All". The story follows Izuku's entrance into U.A. High School, a school that cultivates the next generation of Heroes.
This series is an absolutely fantastic manga, I read it all in a day (as I usually do when starting a manga to catch up to it) and it very immediately made its way into my top favorites. The characters and setting are awesome and I absolutely adore the art style. The anime has started airing and it's super exciting.