At the naming ceremony at the age of sixteen, Lu Zhaochen, a sword-burial boy from a border town, did not get his real name. Instead, eight long-dead names appeared in the fate book, and it was declared that he would not survive the ninth day.
In order to find out the truth behind his adoptive father's death and find a way to survive for himself, Lu Zhaochen picked up the unknown sword and gradually awakened eight memories of his past life: the sword ancestor, the city defender, the hostage of the demon country, the blind caster, the Xuanlu executioner, the uncontracted demon lord, the preacher and the swordless doctor.
In the previous eight lives, they all used swords to save the world, but they also left behind inevitable consequences. Every time he inherits the way of swordsmanship, he has to bear the old debts of another life.
When the ninth day comes, Tian Heng, who controls the fate of all living beings, will wipe him out of the world. All the heavens were waiting for the return of the Sword Ancestor, but Lu Zhaochen only asked:
"If destiny has already written the ending, can my sword open another path for all living beings?"
