So it's highly likely that the first Demon Cultivator was imprisoned underground at Qiu An Tan by a powerful cultivator skilled in talismans, possibly even her master himself. The talismans carved on the stone serve as the magic artifact to suppress him.
After thousands of years, he finally died underground, leaving only a piece of corpse.
As for other Demon Cultivators, at first, they might have belonged to other cultivators. The Purifying Evil Demon Talisman doesn't work on other cultivators, so he could find a way in, take that Demon Cultivator's treasure, and become a new Demon Cultivator.
Jia Xitong mentally filled in the backstory and felt she had uncovered the truth.
"By the way, why did you suddenly ask about this?"
Wan Zhi's voice came from the hall, tinged with a bit of curiosity.
"Of course, I've been there."
Jia Xitong replied casually.
