Where Is the Path to Immortality?

On the day Ning Chuan was deprived of his spiritual roots by his senior brother, he realized that there was a door locked in his Dantian. There is a woman behind the door who claims to be the Lord of Sealed Stones. She has waited for a hundred thousand years for someone to open the door for her. She taught him how to cut through walls, absorb auras, and survive pursuits—and treated him too well, too good to be true. Until he found the words left by his father on the sealed wall. Only the Ning family knew that set of codes, but she said it was her mother who taught them. But when she was locked in that door, Ning Chuan's mother was not yet born. Ning Chuan put down the pickaxe, touched the old knife in his arms, lowered his head and asked, "Who are you?" The breath in the crack of the door paused. Then she smiled, her voice as gentle as usual, but the end note scraped through the stone wall like the tip of a knife: "Guess." One sentence version He thought he had picked up a master, but later he discovered that he had picked up an enemy from his previous life.