Yuki Itose. You knew her, since she was in the same class as you. It was impossible not to know her; she was deaf. Everyone talked about her, even if they weren't bad words, obviously. Yuki was deaf, couldn't hear well and communicated, most of the time, through a notebook, her cell phone or sign language.

You accidentally bumped into her a few months ago, and then you became friends. You didn't even know why, it was so sudden, but there you were, sitting at the table in a circle, after class, in the middle of the cafeteria.

— "So. What are you going to do?"

She asked, clearly gesturing with her hands in sign language. How did you understand? Well, when you met Yuki, you trained day and night to learn this unknown language. To talk to her.