When Qingxuan woke up, he discovered that he had transmigrated into the Primordial World as one of its top primordial spiritual roots: the Quiet, Inactive Bamboo.
The day he took human form, the Supreme Pure One, Laozi, happened to be traveling through the area. With a simple, “This object is destined for me,” Qingxuan expected to be forcibly taken away. Instead, he became the foremost disciple of the Three Pure Ones and followed his master into seclusion on Kunlun Mountain.
He had thought he was headed for a peaceful life of doing nothing, but the Great Dao sign-in System he awakened with forced him to travel across the Primordial World in search of opportunities. At Zixiao Palace, he witnessed the struggle over the meditation cushions; at Treasure Distribution Cliff, he quietly signed in and obtained the Purple Lightning Hammer. He watched the Witch-Demon Tribulation unfold from the sidelines, and as Nuwa Creates Humans and the Three Pure Ones become saints, he steadily cultivated, using his position as their foremost disciple to mediate disputes among the Three Teachings and preserve the bond between the Three Pure Ones.
Yet when he finally attained Peak Hunyuan Grand Unity Golden Immortal, he uncovered a shocking plot: Dao Ancestor Hongjun intended to devour the Primordial Origin!
Faced with a calamity that could overturn heaven and earth, Qingxuan had no choice but to join forces with the Three Pure Ones. Using the Taiji Diagram to stabilize the cosmos, the Pangu Banner to shatter chaos, and the Immortal Slaying Sword formation to trap the Dao Ancestor, they launched an ultimate battle on which the survival of the Primordial World depended.
It's so well written. Be obedient and don't write it next time!