"There is only one way to break this bond, Earth Spirit." And Kyungsoo immediately knew that it would be something impossible, something that would keep him bound to this boulder forever. "You must fall in love with a Human." Kyungsoo laughed bitterly.  He rolled over so that he was on his back, facing the sky, his eyes blurry with tears of mirth and anger.   “Never.  I will never fall in love with a dirty Human."