On her thirteenth birthday, Blue makes a desperate wish.

To be transformed into a cool, confident teenager. Enter Red, appearing from nowhere like a wacky fairy godmother.

She's only visible to Blue - in fact, she IS Blue, but a year older.

With Red by her side to guide her, Blue can avoid all the gruesome embarrassments!

But her future self causes a heap of crazy trouble - and there are dark secrets she's not telling...