Very, very good. Loads of potential here!
I do like the plot: A girl, plagued by her past, starting her life anew in a new school. I like it!
Read the story now
However, do not forget that each character in your story needs to have a past. Your main character has one, clearly, but the people she interacts with do have a past too. That doesn't need to be so elaborate as the past of your main character, of course, but it is something that generates quirks in their everyday behaviour that makes them... human. Don't forget that.
But your writing style is very expert-like! Besides some very, very minor details, which do nothing to bring down the experience you create. Your writing style is very experienced. However, I have one little remark: Don't be afraid to describe the environments your main character lives in. Like how they look. For example: In your first chapter, you explained what exactly Aurora's new school was, but not if it was old-looking, a modern building or located in the countryside. I think your readers would love to know that, so their minds could take them along with your words.
Please keep up the good work! Have fun writing the rest of your story!