The master is an ordinary escort who has only practiced two things in his life: a copy of the Purana Sutra, which has been practiced for decades without any movement;
One move, "Demon Slaying Style", is still the same move after practicing it for decades.
Qin Zheng followed his master at the age of eight and passed on both of these things to him.
The master said: "I don't have any skills, I just know these. You can practice with me to keep fit."
So Qin Zheng followed and practiced for ten years.
Intention: One thing in ten years, one sword for nine lifetimes, and all monsters will bow to it.