A lost magic sword is sacrificed to the blood sword. It is said that the user will gain supreme power, but the ending is without exception that he becomes obsessed. On the way to find the blood sacrificial knife in the name of the leader of the demon sect, the protagonist picked up a young man in white who claimed to have amnesia, and embarked on the journey with him. Unexpectedly, the loss of the blood sacrificial knife actually led to a huge secret that shocked the martial arts world with sadness and despair. . .
Purpose: Are human beings really worth saving? Or, do we really know what kind of creatures the so-called "human beings" are?