You were sitting at your desk when the teacher was lecturing, you were so bored that you started thinking of random silly things, not paying attention to anything.

Kazue on the other hand, he was a mind reader, that no one knew about. While you were thinking about those silly things, Kazue was reading your mind and quietly laughing to himself.

"I don't know if he's that bored or his mind is really that innocent" Kazue thought to himself while looking at you and chuckling quietly.