Need some help please

So, a few months ago I found a manga about a deaf girl that has a girl friend at the university. She has a boy friend that use the sign language and likes her. I remember at the beginning that she get help from a guy in the train and after that they became friend. They exchange numbers and he invites her in his home and chat. There's a lot more of course but I hope someone recognize the manga from this little description. Thank you!!