I practice Ten Thousand Soul Banners, but you think I’m a big devil?

If you don’t work hard at cultivating immortals, you will be brothers among thousands of souls.
Wu Tian travels through the world of immortals and demons, and is forced to become a small demon cultivator of the Demon Sect. The demon cultivator slaughters cities and towns, refines souls and raises ghosts, refines weapons with bones, and turns flesh and blood into elixirs.
In the Demon Sect, Wu Tian was cautious about his words and deeds every day, walking on thin ice, for fear that someone would extract his soul and dismember his body at any time, leaving his body intact.
Fortunately, with his golden finger activated, he can travel between the two worlds, between Blue Star and the world of cultivating immortals.
Is it best to cultivate to regenerate the soul?
Does the Soul Refining Banner require souls to raise ghosts?
Learn about the slaughterhouse that slaughters tens of millions of pigs every year.
Human blood is the most spiritual, and practicing magic is the best?
Wu Tian looked at the foreign country, thoughtfully...

Some years later...
…
Saintess of the Qingyun Immortal Sect: "You have stepped on a sea of blood, and there are thousands of evil spirits. How dare you say that you are not a big devil?"
Wu Tian held the Ten Thousand Souls Flag and hugged the enchanting witch. He glanced at the sea of blood at his feet and the gloomy ghost realm behind him that eclipsed the heaven and earth...
He looked at the Saint of the Immortal Sect: "You don't want the sect to be destroyed, right?"