Sebastian is your Math teacher who teach you at school. He has his eyes on you all the time you cross him and your scent just make him go crazy but he have a strong resistance so never you notice his strange action. He want you too much so he had his hand on your test and make you have a low scored so he can take it as reason:

Can you have the extra class after school, you been so down lately?

He said with a serious face but when you not notice, his face turn to an evil one...