This is one of the best manga I've ever read, it starts off as a normal shounnen, and the protagonist is quite generic, but then over time, it develops, not only he but all the characters, in addition, the MC is not perfect, he often loses, gets sad, gets frustrated, gets angry and etc. At the moment of the manga, EVERYTHING changes, I don't want to give spoilers to end your experience, so please read at least until chapter 173, because that's when everything changes and improves 1000%.
Characters: Everyone is very well worked, even those who start out being generic, have an incredible construction, the relationships between them seem so natural, and the "main" couple has a very complicated relationship and several times it is debated what exactly it is to like someone.
History: Without a doubt, one of the best I've ever read, and look, I've been reading manga, novels, etc., since I was 5 years old, so I've been reading for a long time, but even so this is far superior to many others, being easily better than several successful anime / manga, such as Boku No Hero, which despite being very good too, cannot face this manga in terms of history and characters.
Art: Well, art is the only thing that doesn't stand out so much, even though it has some very good images, such as one that I will leave below that is from one of the last chapters released, and the guy in black is Touta, the other one I'm not going to tell you who it is.