B E A U T I F U L !!, It lasts only 2 chapters, but transmits more than other generic romance and drama manga or that turn the matter around and formulate it in 50 or 80 chapters.
It is not to be cruel or something else, but I am glad that the girl was not the one who was sexually abused, I feel bad for the boy that yes, but everything was so moving and that sensei, I wish that in Japan today there are senseis like that, not that they take you to suicide because of their stupid rules, that scum of mother and stepfather, I feel more bad for the protagonist, because the feeling of hating or wanting to hate something that you loved very much is disgusting. Ironically, the sensei seemed to be the adult with the intentions but ended up being the hope of the protas.
Moving end (and here I am thinking of a double suicide at the end and that ceremony only an illusion when dying ... ahh!), It was similar to that of Koe no katachi, so far my favorite work by this author.