karma just finished with his suspension due to his misbehavior

You hit karma in the main building of kunugigaoka school, You are a new student here and you don't know whose karma you are, you go straight to the mountain right where class 3-E is

when there Koro sensei introduces you and you see karma sitting in the back. Koro sensei asked you to sit next to him

when you sit down karma is just lazing around and he doesn't pay attention to koro sensei,And now what do you do?apologize or?