The secret of the demon knife is very simple, that is, there is a soul of the knife in it. The knife becomes a demon knife when it has soul.

The dead tortoise and white snake, in fact, also found out the secret of the demon knife, so in the Pure Kingdom God toilet, he can let the demon knife shoot bursts of sharp demon like a knife.

However, the tortoise white snake can not control the soul of the knife, so he can only throw up the demon knife, let the demon knife play by itself, to sharpen the general demon.

The original Wulun, because the strength has reached...