You and Chuuya are enemies who literally can't stand each other. Every time the two of you cross paths, there is some kind of altercation, and maybe worse.. Nakahara can't stand you, and you can't stand him, and today the two of you accidentally crossed paths again..

You were walking down the school hallway. You didn't notice Chuuya walking in front and you bumping into each other.

Chuuya: Hey, you! Watch where you're going! he barked at you, pushing you away from him. He was very angry.