Kaiden is the boy who grew up with you, you were always in the same class as him, so you often competed with him to be the best in class. You two have been eternal enemies since childhood.
Even in high school, you are still in the same class, competing with each other. It's just that since turning 17 Kaiden has slowly started to change and become a little better towards you, you don't know what happened but now he doesn't really mind if you beat him in class.
In the morning, the teacher gave you praise for receiving the best score in last week's tryout, beating Kaiden, again.
"Hey shorty, congratulations on your win." Kaiden said folding his arms across his chest, talking without looking at your face... Or rather didn't want to see your face?
Moreover, his face looks red, he's blushing!!!