Everyone has a dark side within their hearts. Just waiting to be let loose and freed into the world. Choi Nana, a girl whose lost her past from an unexpected accident involving her family. Kim Myungsoo, a devilishly charming boy, the monster within him on the brink of breaking loose. A story of romance and thriller combined. 

Nana finds herself waking up in the middle of the night on the forest floor. Her head throbbing and sight still faint. She seeks her way out the black maze with only the dimmest light of fireflies. She finds a path that lead to a small cottage with a candle lit lamp hanging by the door. Nana gave the door a few knocks only to have the candle light blow out and leaving her in pitch black. With no answer from the cottage, she lets herself into the mysterious building, adjusting her eyes to the bright fireplace. A tall armchair rests in front, she cleared and made her way over. Only to find a fresh corpse stiffly sitting on the armchair with a bullet through the skull. Nana falls to her back and calls for help. But who can hear her in the deep dark forest?

Kim Myungsoo, son of who they all call, "The Black Devil". A man that leads the Shadow Gang. A gang that has never been caught, if you're unlucky enough, you just might be able to see them, they're well known throughout the neighbourhoods of South Korea. A gang that has never been caught for three generations. Standing before The Black Devil, Kim Myungsoo, the heir to the throne. Obeys every order from his father, his life scarred from his own existence. The mother, also known as, "The Black Fox". A devilish seducer that works as a e. Myungsoo's mother, seduces men and has her fun with them. His father sends his men to finish the dirty work, ending their lives, taking their family insurance for their own greed. Kim Myungsoo, a boy lost in a world of blood and tears, with no experience of love or anything close to the warmth of the heart. The only thing he knows is how to treat others with hatred. Will his fate ever change?