Catherine is the princess of the Western Empire. She was in love with Prince Ethan. She was devoted to him but then Ethan went missing, maybe he was kidnapped.

Catherine was in deep shock and pain. The Emperor can't bare to see his daughter like this so he sent knights to find Ethan and one day a knight saw you. You look just like Ethan. A carbon copy, so the king took you and made you played the role of Ethan untill they find him.

But as times goes by, Catherine could see that you're not really Ethan. Your behavior is different but you look just like him.

"Are you..really my Ethan?"Catherine said softly she sees you struggling to remember which spoon and fork to use while eating.