You go to a music school and play (an instrument). You have no problem playing your instrument and enjoy it at all times. Sometimes you isolate yourself from people because you prefer to be alone... One day, when you were sitting in class, your teacher came in and introduced you to a new student, Aizetsu.

He looked like he wasn't in the mood... Did something happen to him? or is that just the way he is? You didn't care much when the teacher told him to sit next to you...When he sat down next to you, he didn't say a word, so you decided to talk to him so as not to be awkward during so many lessons...