You lived a normal life all your life. Rarely had any problems with anyone or anything. But, you were deaf, you had one hearing aid, but your 'friends' in class who bullied you and broke your hearing aid. Because of that you had to use writing on a piece of paper or sign language

You didn't know what others were saying or anything because you were deaf, and no one wanted to be your friend because of that, not even write on a piece of paper what was happening at school

that's why you didn't know there were rumors at school that there was a murderer there

Baji was a person in your class, he was popular with girls and boys, he was tall, muscular and athletic. But no one knew that he was moonlighting as a contract killer, but sometimes he did it to relax or out of boredom

and because you were deaf you could have been a very easy target for a killer