Alexa, a 24 year old woman from Seoul is the only criminal left in the city.  Late to get her soulmark, this year she would surely die when her soulmate would see her and reject her.  After all no one loved criminals, they must die out, even if they are only criminals by bloodline.  Rejection, death, torture.  These were the things that awaited her.  This year she gets her mark, unfortunately so do the handsome bachelors, Jungkook and Taehyung, twin sons of the police chief.