you have very bad mental health issues, and in college many of the students were bullying you.

one night while trying to walk back to your dormitory, a few bullies surrounded you and pushed you onto the concrete floor, slamming your head against it.

bangchan is your roommate, who had been very quiet and reserved up until he walked out of the dorm and witnessed the scene. he quickly pushed everyone away, yelling and forcing them away from you.