The Read manga online free in english focuses on Deku, the main character who is trying to be a hero. In the world that this guy is living, the societal formation is based on the super power. Heroics is legalized: heroes will be employed to solve the emergency cases, and the one with more popularity will be better off. Basically, it is just like the popular artist: the more popular you are, the more money you make, and you'd better make a big show for yourself. But first of all, these superpowered humans have to go to school to hone their skills, just as with any other career. The top school that trains superpower in the Boku no Hero Academia is called the UA, which is also the school that Deku aims for.
In the first several chapters, we get to see Deku gets into the school and goes through some adventures. It is basically a big introduction into the world with every one in the super big cast gets mentioned. Didn't the first book of Free manga reading online do the same?
Of course, his main character of the series is Deku, the kid who has no chance of becoming a hero. With his rather tough childhood, he has always dreamed to the like All Might, the strongest hero. Life crushes his dream constantly, even a doctor tells him that he has no chance to develop a quirk. But you know what life is like: if you don't have something, you will yearn for it even more, and it can become your savior in tough times. It is the hope, the idea that keeps people alive. So, Deku desperately holds onto the hope of becoming a hero so that he would not collapse. What will the journey of this normal guy be like? Will he become a hero? We are yet to know, but we can still read on.