On the eve of the rebirth of the Great Luo Jinxian Lu Xuan, who fell in his previous life, he awakened the "Buzhou Mountain Sign-in System". Every time he signed in at the ancient land of ancient times, he would get a heaven-defying opportunity - he would get a fragment of the Sky-opening Ax with the first sign, and then he would learn the Chaos Art. , Three signatures to collect the essence and blood of the ancestral dragon... With the blessing of the system, he started out as an expelled outer disciple of the Jie Jiao. He first helped the Wu clan suppress the Jiuli rebellion, then broke into the Demon Court to seize the Hetu Luoshu, and even discussed the Tao with all the saints in the Zixiao Palace. As the number of sign-ins increased, the good corpses, evil corpses, and obsessions that were beheaded in the previous life returned one after another, and unexpectedly revealed the shocking secret of Heaven's plan - it turned out that he was the "Taoist Mending Tian" who was wiped out at the end of the catastrophe, and the six saints today were all transformed by his Dao Fruit! When the Great Catastrophe of Conferring God swept across the ancient world, Lu Xuan held the fragment of the Sky-Opening Ax and became a saint on the spot. He measured the calamity with the invincible attitude of "signing in a million times", and finally re-established the Great Law of Chaos on the top of Buzhou Mountain and rewrote the reincarnation of the ancient world.