I personally really enjoyed this manga, as high school tragedy is one of my favorite genres, though it really does seem to be revenge porn focused on guro.

It's definitely satisfying seeing the mc take her revenge, but due to the shortness of the manga, it really felt rushed and we didn't get to know what went on inside her head, like in say, aku no hana, which is something I felt would have helped make this story less two dimensional.

The interesting art style really does set this apart from others, though often it detracts from the story as it's hard to tell who's who, who's supposed to be beautiful and who's supposed to be plain, and even interrupts the story flow sometimes.