Koe no Katachi (A Silent Voice)
I wish we had never met. I wish we could meet once again. A boy who can hear, Shoya Ishida, and a transfer student who can't, Shoko Nishimiya. One fateful day, the two meet, and Shoya leads the class in bullying Shoko. But before long, the class shifts its target from Shoko to Shoya. Years later, Shoya feels strongly that he must see Shoko once again.
[Source: manga synopsis via Crunchyroll]