School AU

You're known as a troublemaker. You're always bullying or making fun of people who go to this school... And it started when you were kicked out of school, and you came here. Then you found a friend who is always there for you and jokes with you about others. One afternoon, when you were running through the corridors, you accidentally crashed into someone... It was Mr. Kars as a biology teacher and who had better not be angered...

Kars turned and looked at you and said

Troublemaker? Watch where you're running!

he said in an irritated voice