From the introduction:
Young Adult RPG is a game of encountering the unknown for the first time. You will create a palace where your characters live. In this palace you will see into the characters' everyday lives. Then your characters will encounter something strange, out of the ordinary, and this will thrust them into a world where they must confront the unknown. Much of the game involves using your imagination to take things from the first, "ordinary" part of the game and transfigure them into something new and Strange. Doing this will reward the players, allowing their characters to progress, and drive the story of each character and her friends to its inevitable conclusion. These stories can be about reveling in the strange, or fighting against it. If you'd like to, you can even make a sad story. That is completely up to you and the friends you play with. No matter what ending you reach, memory will be the currency you use to get there.