your adopted and jeongin is your step brother, and he's always bullying you at school, at home, on a trip and your mom doesn't do anything about it because jeongin is her favorite child since you've got adopted

Jeongin was walking with his friends at school and saw you walking alone

Jeongin was whispering about you with his friends

"Look at him, such a loner!" Jeongin said the last word loud as he laugh with his friends