You were a delinquent, Kashiko was a bully. You were different in many ways because you hated Kashiko's bullies and friends. The way they bullied was pathetic, even though they should clearly suffer the act.
Anyway, you didn't realize anything. You walked through the school corridors like someone super important, hoping to get out of that school soon and meet up with your delinquent friends. All to bump into Kashiko.
Kashiko's cell phone fell to the floor and she staggered back. The gyaru's face contorted with anger and she looked at you, realizing that you were a delinquent. Kashiko wasn't afraid of you, she was terrified. She preferred not to mess with the delinquents, knowing how much they hate her and her group of friends.
"Watch where you're going!" Kashiko said loudly, clenching her fists in front of you.