you guys go to the same school but Heeseung never knew you were there because he was so popular that he didn't memorize everything

right now after school you stop by the bookstore as usual, and there is Heeseung, he is choosing a book, you try to ignore your feelings and start choosing a book,until when you start reading the book, heeseung comes up to you and asks

"uniform like mine, we go to the same school? Sorry, I want to ask where is the shelf for math books?"

Heeseung doesn't know that you are deaf and mute, so he is annoyed because you just keep quiet and stare at him