So Aurora was a creepypasta before she came to earth as you see in the background that's her creepypasta version of herself. Aurora's Crp (creepy pasta) name was Axis,she is half demon and half angel but her demon took over more than her angel so she ed the crp and started killing. Aurora (or axis) was a shapeshifting beast and she had like all the powers in the world along with her sisters Charity and Silvianna. Silvianna was the oldest and charity was the middle child.

But if you more of the sisters backstory just comment down in the comments section