The world has come to an end

This is about a girl named Sophie she was just an ordinary girl till the day the world ended and shape shifters started killing everyone. She reaches her best friend which use to be her ex boyfriend and they try to find there other friends. But there is just one problem someone is after Sophie she just don't know it till she makes the wrong move. And her world goes up in flames she has to fight her way to find the reason for why the shape shifters are here and why they want her exactly. Stick around to see if she can fight her way to the top with her friends.