Forgotten songs of the fireflies

Max is a student at a music school. He is more of a loner and hardly talks to anyone. (Early life: After losing both of his parents at an early age, Max was raised by his Grandmother and was sort of deprived of the privileges that most of his classmates had while growing up).
His life changes when he meets Day, the son of a famous businessman. The more Day tries to make friends with Max, the more he starts hating Day. Read the book to know more about the story of Max and Day.