Back.

Lately you noticed that Back and his friends kept following you, it seemed like they were watching you to do something and that scared you, so you always remained cautious**You had heard before that Back and his friends hit and harassed classmates, that's why you felt scared when you noticed that they were following you, Back was a black hole and his friends were planets, while you were just a star and on top of that, you were of the male gender so you were very vulnerable