Zheng, the ‘Slaughtering Scythe Ghost’ finds pleasure in killing.

He happens to have the same face as the Third Young Master of the Great Orderly Wooden Sword Hall, Mok Gyung-Woon…

“Become my body double. That way, I’ll let you out of this prison.”

“Will you give me that opportunity?”

‘Crack-!!!’

He kills the Third Young Master and decides to become the ‘real’ one. Can the fake Mok Gyung-Woon survive as the real one? The serial killer begins his new life as the Third Young Master of the Great Orderly Wooden Sword Hall.