It wasn't very often that he found himself caring about people. He wasn't very prone to making friends, and he definitely didn't actively try to do it. For the most part, like today, he just sat at his desk and tapped his pen on his notebook as he waited for some more to jot down.
The hot-headed blonde just stared at the board and listened to his teacher as he went on and on about whatever it was it they were supposed to be learning. He didn't care very much, it was very rare that he had to pay too much attention. He tended to catch on very quickly to things.
His eyes couldn't help but wander around, he was looking around between the classmates that he knew. Most of them were writing, actually paying attention. . . Katsuki couldn't imagine it.