Because it is so difficult for the rest of the races to open their wisdom, with the conquest, the number is almost decreasing, and there are many races that have not even been able to open their minds for thousands of years, and they cannot be seen directly in the demon race, but the human race is constantly growing, and the proportion of the human race in the demon race is constantly growing.

Before the Lich War, the human race actually accounted for almost four or five percent of the demon race, and although the strength was weak, it was among the big clans in the demon race.

Seeing that the human race is so prosperous, and looking at their own situation, the rest of the races are naturally jealous, so they gradually begin to reject the human race, plus devouring the human race can increase the speed and chance of enlightenment, so many races often attack the human tribe openly and eat people.

The human race suffered heavy losses, and after playing the demon clan heavenly court several times to no avail, he was angry and sought refuge in the Wu clan and switched to the Wu clan, the Wu clan thought that this was a big increase in face and a big morale thing, so he immediately accepted it, but at that time the human race also admitted that he was a member of the demon clan, just a traitor in the demon clan.

After the outbreak of the Lich War, in the Lich War, the Lich War was strong, and the Terran did not look down on the combat power of the Terran, so the Terran was arranged in the rear, all the races suffered heavy losses, but the Terran did not lose much, the Terran originally had a numerical advantage, and now it has further widened the gap, and immediately became the most powerful clan in the world, seizing the position of the protagonist of the heaven and earth.

Since then, the human race has completely separated itself from all living beings and classified itself into one category, and the more powerful Shura race, the demon race, the dragon race and other races have also separated themselves from the demon race one after another, and from then on, the demon race no longer includes these races.

As mentioned in the next section, the body of each race is different from that of other races, so the practice of different races is not common, that is, they are all birds, and the practice of eagles may be able to learn from them, but they cannot be completely practiced.

Originally, the demon clan also created countless exercises, and these exercises were recorded in the heavenly court, and before the Lich War, no matter what kind of demons were not lacking in ready-made cultivation exercises, and they could also get guidance, so they had the glory of the previous demon clan.

However, all the exercise cheats collected in the Lich Great Heavenly Court have been divided between the Sanqing and the two saints of the Western Sect, and the demon clan masters have died a lot in battle, and there are a lot of broken inheritances, and most of the races are difficult to make up a complete set of their own clan's exercises, and the demon clan's cultivation has become even more difficult.

After the human race became the protagonist of heaven and earth, the masters of the demon clan were further killed, and the demon clan was forced to scatter in all directions, and after hiding in various sinister environments that were difficult for humans to survive, communication became less and less, and the speed at which the various exercises inherited by the demon clan disappeared faster and faster.

At this time, most of the demon tribes were born in the mountains and wilds, and they generally live alone, and they rarely go out when they demarcate the territory, and many spirits have never left the mountain where they were born in their lives, and they have not been in contact with other intelligent beings, and they don't know how to write, so it is extremely difficult to inherit the exercises, except for a few spirits who are extremely powerful to the extreme, and have been able to change their own bloodlines, and inherit their own strength and knowledge through the bloodline, most of the spirits created by the spirits are difficult to pass down.

Among them, the most miserable ones are made of plants, because there is no effective means to pass on their own exercises, so the cultivation experience they have explored throughout their lives, and the exercises they have created are almost all from generation to generation, and few of them have been passed down.

Although the animal essence is better, but it is not much better, they mostly use the language of their own clan to find out themselves, and the exercises they have realized are passed on to their descendants, but because of the monotony of the native language, it is difficult for them to express what they say, so when they pass it on, they are actually missing very strict, and their descendants often get these inheritances, and it is difficult to cultivate.

Moreover, for most of the creatures except for the human race, it is a very helpless thing to open their minds, even if the descendants of the spirits can obtain more blood food and elixirs containing aura, the chance of enlightening is greater than that of ordinary creatures, but not all the descendants of the spirits will be able to open their minds, most of the spirits are passed on for another generation or two, and their descendants will be completely reduced to ordinary animals that cannot be enlightened, so that the various exercises they have passed down will naturally be cut off.

In this way, the spirit wants to obtain exercises suitable for the cultivation of his own clan, but it is like looking for a needle in a haystack, and its difficulty may not be lower than the difficulty of exploring and creating zào exercises by himself.

Human beings are different, human beings all have the same body structure, but all the exercises created by human monks, except for a very few that have restrictions, most of them can be practiced by all human beings, so that human beings have an innate advantage in the exercises.

Moreover, human beings have been social creatures since ancient times, because they communicate with each other a lot, so human language is very rich, and they created writing a long time ago, and have the habit of using written books to inherit culture, so most of the exercises created by human monks can be passed down in the form of words.

Even for some conservative monks, the exercises they created were only passed on by word of mouth, not in writing, and because almost all of the younger generations could open up spiritual wisdom, they could generally be passed down for many generations.

In addition, human monks often move around, communicate with each other and verify each other, and many monks even start sects, inheriting and developing from generation to generation in the form of sects, and improving and supplementing the exercises passed on by their predecessors from generation to generation, so there are not only many human exercises, but also extremely perfect, faster to practice, and more powerful to exert.

In this way, there is a phenomenon that after the demon clan has opened their wisdom and come into contact with humans, they will often envy the human body, which can quickly accumulate spiritual power, and even more envy the human cultivators who have created and recorded a wide variety of powerful exercises, so they will find a way to transform into a human body.

Over time, more and more members of the demon race have become humanoids, and when there are more such demon races, human beings have made a distinction between the demon races, and those who have opened their spiritual wisdom but will not change into human form are called spirits or monsters, and those who have changed into human forms are called demons, and the process of transforming from demon bodies to human bodies is called incarnation.

It is said that since the Xia Dynasty of the human race, only the complete transformation, with the exact same body appearance as the human race, can not be identified at a glance is not a human spirit can be called a demon, if it still retains some of the animal characteristics of the spirit, it can be seen at a glance that the spirit that is not a human body can not be regarded as a demon, but whether it is a spirit or a demon is still counted in the demon race.

It is also mentioned that some spirits can also become human beings through illusion, but they have not changed, and the body cannot obtain the characteristics of human beings that are close to the aura, nor can they practice human exercises, and there is no change in nature, although this kind of spirit has the same appearance as humans, and it is not easy to see through, but it is not a demon, or it can only be regarded as a spirit, and their illusion method can only be called an illusion, not a transformation.