Katsuki Bakugo x Male Reader

After school ended, I grabbed my bag hearing everyone's chairs screeching and the rusting of clothes. Most had left, leaving a few students and a breathing sleeping bag in the room. I yawned and began making my way out the door a firecracker following me silently. I ignored it at first, we walked the same way out of the school, so it wasn't that abnormal. After a minute of walking in silence he spoke up causing my wings to twitch from the sudden voice "Hey Extra!" "Yes, Boom boy?" that added salt to some sort of wound I'm assuming by his response "I told you to drop that name!" I scoff "Yea sure Boom Boom Boy" this time I said it in a mocking tone, and he shut up.