Prehistoric: Just After Becoming the Immortal Emperor, the Human Race Was Massacred

Changge traveled through the prehistoric world, became the first innate human race, and awakened the one-time unlimited deduction system. In the early days of the Lich Tribulation, the human race was extremely weak. There was no strong person in charge. I did nothing and Nuwa did not care. In order to protect the human race, he chose to retreat. With the help of the system, he combined the cultivation system in the novels he read in his previous life, added his own understanding and modifications, and created a new cultivation path. After millions of years of seclusion, he finally cultivated to the realm of the Immortal Emperor and became undefeated by the saints. But as soon as he came out of seclusion, what he saw was the demon clan massacring the human race. Thousands of humans became the nourishment of the witch-slaying sword. There was not even one human race left in ten. He immediately became furious and roared: "The Demon King must be killed, and the Heavenly Court must be destroyed!" Killing towards the demon clan heaven, from then on the human race rose up, began to dominate the ancient world, and finally entered the heavens and the world. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.