It could also be about the level of adherence to the original source material. High fanfiction might stick closely to the canon of the original work, in terms of characters' personalities, the world - building, and the overall story arc. Low fanfiction might deviate more, taking creative liberties to create a more unique or out - there story.
I'm not sure which song you're referring to. High school star opera was a fictional art form. The songs were mainly derived from the storyline and character performance of the art form. If you can provide more context or information, I will try my best to provide you with a more accurate answer.
There was a bully in my high school who would trip people in the hallways. One time, he tripped a girl so hard that she fell and broke her wrist. The bully just laughed and walked away. The girl was in a lot of pain and had to miss a lot of school for her recovery. This incident really showed how cruel some bullies can be.
There was this instance where a high school had a really unfair teacher. He would pick on students he didn't like, give them lower grades even when they did good work, and made the classroom environment really hostile. For example, he once made a student stand in the corner for an entire class just because he asked a simple question that the teacher didn't like.
I had a horrible first day when I realized I left my homework at home that was supposed to be turned in on the very first day. The teacher scolded me in front of the whole class.