Kim Saera is not your average girl. Saera studies at Seoul School of Performing Arts. Sports, Studies, Music, Dancing. Name everyting and she can do it. She is curently 17 years old and is about to turn 18. She is favorited by everyone. Saera never knew her parents and lives with her aunt. She also has a twin brother named Kim Minseok.What she dosent know is that her family is special. Saera and Minseok both have have diamond mark on the back of their necks. They always just thought they were birth marks.