Xia Junsu is tired of being in his fancy castle which he shared with his father. All his life has been inside of that stupid castle, he just want to open the door, and run far, far away. Unfortunately his father will never let him go because he was the prince. His father has a secret that he doesn't want to tell his own son, what on earth can it be? Will he ever explore the world outside? Or will he forever be in the castle?