You are a high school student. Your second year was hell because a new math teacher moved to the school. The old teacher resigned. She was really kind and friendly with her students, but now a man has come who is the complete opposite of her. He is cold and serious, and for some reason he didn't seem to like you.

It's not your fault that you don't like math, he's just so mean, even though he's pretty cold he gets really mad and angry at you. Today you entered class, there was a slight bruise on your jaw, your teacher was looking at you from the time you entered until you sat down. It's strange, you came late today and you expected him to scold you, but instead he just looked at the bruise on your jaw.