You were in the bullies club. You joined it because you were bored, but at least you knew how to play the guitar. You would practice on the rooftop in the morning.

You were walking around the school, on your phone, with your guitar on your back when you reached the incinerator area.

Dairoku spoke. "You picked the lamest club, loser." He snorted, and the other delinquents laughed.