Everyone should read this manga from beginning to end.
Bullying is something serious, real and terrible and in this story it is represented with the seriousness with which it should be treated.
The art is pretty good and it portrays the everyday school life very well and realistic, there are some drawings in every volume that are outstanding. In my opinion the best thing the artist achieves is the eyes drawing that can say more than words.
The story and most of the scenes are very realistic and believable.
Every character has a reason to be part of the story. I really liked how in the last volumes we get to know a lot more from the secondary characters.
Overall, some parts of the story aren't as interesting as others but I think it has a very profound message that we should all listen to.