I practice the Ten Thousand Souls Banner, and you say I am a big devil?

Novel Summary

If you don’t work hard at cultivating immortals, you will be brothers among thousands of souls.
Wu Tian traveled through the world of immortals and demons, and was forced to become a small demon cultivator of the Demon Sect. The demon cultivator massacred cities and towns, refined souls and raised ghosts, refined weapons from bones, and made pills from blood and flesh.
Being in the Demon Sect, Wu Tian was cautious in his words and actions every day, living like walking on thin ice, for fear that his soul would be sucked out and his bones would be torn apart at any time.
Fortunately, his golden finger was activated, allowing him to travel between the two worlds, back and forth between Blue Star and the world of immortal cultivation.
Is it best to cultivate with a reborn soul?
The Soul Refining Banner requires souls to raise ghosts?
Learn about slaughterhouses that slaughter tens of millions of pigs every year.
Human blood has the most spirituality and is the best for practicing magic?
Wu Tian looked at the foreign country, thinking...

A few years later...
……
The Saintess of Qingyun Immortal Sect: "Standing on the sea of ​​blood and surrounded by thousands of evil spirits, you still dare to say that you are not a big devil?"
Wu Tian held the Ten Thousand Souls Banner in his hand, hugged the enchanting witch, and glanced at the sea of ​​blood under his feet and the gloomy ghostland behind him that made the world pale in comparison...
He looked at the Saintess of the Immortal Sect and said, "You don't want your sect to be destroyed, do you?"

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