"And there he left me, crying as I fell on the floor. All I could see was his wet back, as the rain fell harder and so did my tears. The struck of thunder was no match against the sobs that escaped my mouth. Not once had he turned back to say sorry, he didn't even look back. Now all I can do is wake up, and hope this nightmare comes t

You are a new doctor at a very famous hospital, Seoul National University Hospital and this was the place where your mother`s life was taken.  Revenge was the only fuel that drove you to who and what you have become, your only goal: to end the life of the person who had taken your mother`s life.