There is a cloud in "The Three and Five Calendars": "..... The first born Pangu, the embodiment of the dying, the air becomes the wind and clouds, the sound is thunder, the left eye is the sun, the right eye is the moon, the limbs and five bodies are the four poles and five mountains, the blood is the river, the muscles are the earth, the muscles are the soil, the hair is the stars, the fur is the grass and trees, the teeth and bones are gold and stone, the essence is the pearl and jade, the sweat is the rain, and the insects of the body are the wind and turn into the li..."

"The Immortal Tongjian of the Past Dynasties" cloud: "As soon as Pangu stretched out his body, the sky gradually rose, and the earth fell." And the heavens and the earth are more connected, who hold the chisel in their left hand and the axe in their right, or chop it with an axe, or cut it with a chisel. It is a divine power, and over time, heaven and earth are divided. The two qi rise and fall, the clear one is the sky, and the turbid one is the earth, which is chaotic. ”

Legend has it that Pangu opened the world and supported the world with his body. When he is about to die, his eyes turn into the sun and the moon, his body into mountains and rivers, and his blood into rivers..... Finally, this rich and fertile land of China has been formed.

In this vast and mysterious land, due to different natural conditions, three invisible breaths are derived, aura, demonic energy, and demonic energy. Later, Nuwa created people, the human race is good at controlling the aura, the beasts are good at resisting the demon energy, and can transform into a human form, the demon race is good at resisting the demon energy, mysterious and powerful, cultivating to a certain realm, can turn the demon core, as long as the demon core still exists, it can not be destroyed, so the demon race is the oldest race.

After a long period of war, the three clans were united, and their leaders were all good spirits, demons, and demons.

At that time, the leader of the demon clan, Hu Po, was ambitious and wanted to unify the land of Shenzhou, and on the grounds that he was afraid of the rapid rise of the human race, he intended to sign an agreement with the leader of the demon race, Chi Feng, to jointly attack the human race.

After the demon clan called itself Chiyou, it has a long history, and it thinks that its own blood is the most noble, and it is unwilling to be with the human race and the demon race, so it wants to enjoy the Shenzhou continent alone.

Chi Feng pretended to agree to send troops to the human race, and when the demon clan sent troops to the human race, he attacked the demon clan's lair, the demon clan's vitality was greatly damaged, and Hu Po was seriously injured.

Later, the wind lightened the enemy, and was seriously injured by the human leader Xuanyuan Oath, and retreated to the Demon Domain. Since then, there has been constant friction between the three clans, resulting in the destruction of life and complaints in the land of Shenzhou.

After the Three Emperors (Fuxi, Shennong, and Nuwa), they took pity on the people of the world, so they used the power of their bloodlines to block the passage between the three clans, so that the world was peaceful.

Long after the story happened, the battle between the three clans became a legend.