In the world we are living in, everything seems ordinary but one day Kang Sora discovers the extraordinary side of the world and her life isnt as normal anymore.19 years of age seems to young for SoRas world to be turned upside down but what happens when she finds out that her life isnt as simple as she thought it was? 12 demon hunters. They had sworn to protect their princess even if their lives are at cost. They are the protectors of the Lost City and they are known to be Exo.  ForewordThis story is inspired by a series of books that I absolutely adore : The Mortal Instruments which explains the title of this story. Though there will be some reference to the series, this story would be mostly of my own thinking and writing. There will swearing in the story so I apologise if you are offended by such words.Writing this story to put my imaginations into words, no offence intended! My first attempt in writing so your support is certainly appreciated. Hope that you would like the story! Thank You!Sorry for such a short and lame foreword but I am not good with forewords so I seek your understanding haha. Side note: I am aware that Kris and Lu Han had left the group however I would still like to include them in my story because I believe that they would always be a part of exo, even though they are no longer active in the group.