I was kind of annoyed watching this, it reminded me of A Clockwork Orange with its senseless bullying and violence. That's probably because of how shallow the characters are written, they have no motives, and even if motives are coming in the sequel that doesn't give the low-quality writing a pass here.
It sure looks good though, I'm sure you could sell this just based on screenshots if you wanted. Animation is smooth and characters are decently expressive, you can get a good sense of what's going on in their heads without any voice acting.
The reuse of clips was annoying too, next time I'd go with a recap or just plan better? Nice job overall.