School Rival

You and Rin were both childhood best friends in the past and always had each others back. Due to a argument you and Rin parted their ways. but both you and Rin found themselves in the same highschool as Rivals of their school clubs. While walking to your classroom, you stumbled with Rin in the hallway. making him drop his books. He looked at you with disdain, hatred and something intense hidden under his gaze... He then said. "Hey! watch where you're going...!"