Evil spirits appeared earlier than humans. As for when, it is impossible to say clearly.
But as long as humans have been conscious, they have been in contact with evil spirits. Evil spirits exist around humans, and at first, the two species do not invade each other. Although there are occasional minor frictions, they have lived in harmony for thousands of years.
However, humans continue to expand and encroach on territory. According to records, the prehistoric human civilization - the ancient Shu civilization - is recorded on the stele. The ancient Shu people were large in size and had long faces, somewhat similar to today's apes. They had powerful minds and reproductive abilities.
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As the ancient Shu civilization continued to develop, the conflict between the two races continued to escalate in order to seize territory. Thousands of large and small wars took place over the past hundreds of years, eventually ending with the demise of the ancient Shu people.
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But before that, the King of Shu gathered the last strength of the ancient Shu civilization to reach the realm of death, sealing away the souls of the dead evil spirits and suppressing and weakening the power of the remaining evil spirits.
Tens of thousands of years later, the evil spirits declined and ancient Shu rose. A large-scale war broke out again between the two powers. According to legend, the Yellow Emperor and Chi You were the leaders. This tragic battle finally ended with the victory of ancient Shu. The Yellow Emperor successfully sealed all the evil spirits in the realm of death laid down by the ancient king of Shu.
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Humanity has been stable for hundreds of years. During the Sui and Tang Dynasties, the ancient Shu civilization was discovered. People yearned for the power of ancient Shu, so a large number of immortal cultivators, also called pilgrims, appeared. They practiced together with the ascetics. During a practice, they inadvertently caused the mantle of the earth to vibrate, creating a loophole in the world of death, and many evil souls took the opportunity to escape. It was not until the Ming and Qing Dynasties that the realm of death was repaired.
However, there are also many "things" that do not belong to the human world.
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