Fifteen years ago, on a stormy night, a mysterious band of assailants raided the Chu Manor, brutally massacring the entire Chu family for reasons unknown. The master of the manor managed to escape with his infant son. For months, they fled for their lives, hiding in trees, caves, and even graveyards, surviving on wild roots, bark, and herbs. Eventually, they found refuge in a desolate, uninhabited land. To protect his son, the master kept the identity of their enemies a secret while patiently training him in martial arts. However, six months later, masked assassins tracked them down and murdered the father. Saved by a mysterious eccentric, the boy spent the next fourteen years training in a secluded valley. His savior repeatedly warned him never to return to the site of his father's death, promising that all would be revealed in time. What secrets lie behind this tragic past?