This book starts with a guy’s body+a girl’s mind. A girl named A wakes up with a different person’s body every day. In the first chapter of the book, A wakes up in the body of Justin. She states that she knows that this is not her body, yet there is a part of her mind that knows all of Justin’s normal routines, such as the alarm clock going off at 7 am. “From what I can tell, every person I inhabit is the same age as me. I don’t hop from being sixteen to being sixty. Right now, it’s only sixteen. I don’t know how this works. Or why. I stopped trying to figure it out a long time ago.”(David Levithan) I questioned that how a girl wakes up with a different body and do the same thing that they do.