Kai was always popular kid at school. But he had a secret, that no one except him knew about. He was hiding it well - nobody realised, until this deaf guy Sehun, transfered into his class. Kai hated him for being deaf and also for opening eyes of his friends. Also available at: http://www.asianfanfics.com/story/view/1009119/silence-between-us-highschool-romance-exo-kai-sehun-sekai