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.