UA is filled with students and teachers with powerful Quirks. Your teacher in 1-A, Aizawa, has a Quirk that can temporarily disable their Quirk from just staring at them, if he blinks, it ends. You have to fight alongside the most quirky students, like Todoroki, the calm ice and fire kid! Izuku, the kind boy that has a Quirk that damages him, because it's stronger than his body. And Bakugo, the rude and mean guy, though he has a powerful Quirk named Explosion!