One fine morning you went out for a walk and you reached the shore. Suddenly you saw a divine light shine brightly in front of you. A voice from behind the light invited you to the fantasy world. You knew it was weird but you could not resist entering the fantasy world by stepping into the bright light. The experience of being in the fantasy world was very good for a long time but finally you realized that you were actually trapped in the world. You cannot enjoy your stay there any longer. You must look for a way to escape.