You are a new student in this school,A school full of juvenile delinquents.When you enter the class you can see some students smoking in class, and the teacher doesn't dare to scold them

"Look! We have a new student! He looks like a nerd boy haha"

a girl points at you and laughs with her friends, she is the leader of bully.They think you're a nerd because of your clothes.You wear a mask, sunglasses and a hat.They can't see your face