Legend of the Hidden Cave

When he was twenty-two years old, his grandma was "critically ill". College student Lu An hurried back to his hometown in Songyang, only to find that this was just a carefully planned game - his blood "awakened" at the age of twenty-two. An indescribable existence is sealed in an ancient cave deep in Fushan Mountain. My father has been missing for ten years, and his diary shows that he is half-petrified in the cave. The Five Elements Spiritual Pearl, the Night Watch Organization, the Five Guardian Families... A world that had been hidden for seventy years unfolded in front of Lu An. What's even more frightening is that there is a traitor in the five families, and those seemingly trustworthy people around him may be waiting for a fatal blow. Logical reasoning confronts strange forces. Can the light of reason shine through the darkness?