A Decent Family

([Zong Mission] + [Golden Finger] + [No System] + [Not Invincible]) Legend has it that the most powerful demon king, Yun Zhongxian, used all the power of his clan to invade the forbidden land of life, the "Burial Sword Mountain", and then fought to the death to bring out the three greatest treasures in the world. They are the Demonic Immortal Library, the Righteous Immortal Library, and the Underworld Immortal Library. The reason for doing this is even more because of an incredible secret, which is related to the life and death of the cultivators. The world was shocked by this news. Experts from all walks of life gathered in Fire Dragon City, but they only saw an old man. His cultivation was completely useless and he didn't mention the treasure at all.