Hidden Dragon

In Li Yin's most desperate moment, a mysterious monk who claimed to be Taoist Qiankun taught him a secret technique called the Great Devouring Technique, and saved his life with his own blood. At that time, Li Yin heard bursts of dragon roars. Before leaving, the Taoist left a piece of tortoise shell engraved with mysterious runes and said: "Look for me with the tortoise shell a hundred years from now. Then you will have a fight of your own."