The crack in the barrier that Cao Fan had just opened was much larger than the scale that Venerable Linggang had torn apart with all his might when he fled.

This is another powerful ability he has obtained from the bloodline inheritance - "Hanli Incarnation".

This innate divine skill made Cao Fan's power artistic conception directly surpass the level of the Great Perfection, and even Long Yin, who had always been proud of his outstanding strength attributes, sighed to himself.

Entering the Tiandu Demon Realm, the first thing Cao Fan felt was the strong demonic atmosphere around him. This is worthy of being the territory of the ancient demon clan, if it weren't for the fact that he had already simulated the characteristics of the demon clan's aura when he came, it would seem incompatible with the surrounding environment at this moment.

Cao Fan came in from a void in the Origin Saint Realm by tearing through the barrier of the plane, but at this time he was not in the void of the Tiandu Demon Realm, but in a very vast huge jungle.

There are many demon clans living in this jungle, Cao Fan looked around, and saw hundreds of gray-haired giant apes with a height of several feet shuttling among the giant trees dozens of feet high, picking the spiritual fruits on the trees.

However, because of Cao Fan's sudden appearance, some of the gray-haired giant apes had stopped what they were doing, and their eyes were watching him very vigilantly.

Soon, the faces of several of the gray-haired apes changed dramatically, their mouths opened and let out a high-pitched scream, and they turned their heads and ran wildly into the depths of the forest.

The other gray-haired giant apes heard the cries of their companions, and they also jumped in fear among the giant trees, quickly receding like a tide, and in an instant, Cao Fan could no longer see a gray-haired giant ape in his eyes.

Cao Fan touched his nose a little innocently, the monsters he changed were not too scary, why did these gray-haired giant apes avoid them as if they had seen a plague when they saw them?

In fact, Cao Fan was not prepared to kill when he came to the Tiandu Demon Realm, at least he would not attack some innocent demon clans.

The only thing he had to deal with was the ancient demon clan of the Tiandu Demon Realm.

The Tiandu Demon Realm has a strict population system:

It is a special race with the bloodline of the ancient demon clan, with an outstanding status, above the other major demon clans, and occupying one-thousandth of the demon population of the Tiandu Demon Realm;

It is the superior race that has the collateral bloodline of the ancient demon clan, and it is also a high-ranking existence for other demon clans, and it also occupies one-thousandth of the demon clan's population;

Then there are some brave demon clans that the ancient demon clan has raised to help them control the entire Tiandu Demon Realm, they belong to the ordinary race, and they only occupy less than five percent of the demon population;

The remaining tens of thousands of other demon clans all belong to the fourth-class race, and their status is very low, and they are also known as slave races.

In the Tiandu Demon Realm, all the dirty work is done by the slave clan. They have been oppressed by high-ranking groups for generations, but they dare not have any heart to resist.

After all, because of their status, the high-level race has the best cultivation resources, so they can always cultivate the most powerful demon clan existence. The slaves have no ability to compete with it at all, and there is no other way but to be submissive.

The jungle where Cao Fan descended, called the Xiyan Forest, was inhabited by nearly a hundred demon races, large and small, but all of them belonged to the slave clan without exception.

The hundreds of gray-haired giant apes that Cao Fan saw earlier were from the gray ape clan, and they were one of the more powerful demon clans in the Rhino Forest. The reason why they are so jealous of Cao Fan is because Cao Fan reveals the bloodline of the ancient demon clan, and the demon cultivators of the ancient demon clan have always been fierce and domineering, and it is the wisest thing to avoid them when they encounter them.

Moreover, Cao Fan's appearance coincided with the day when the tribes of the Rhino Forest paid their tribute, and at this time, the ancient demon clan would send an envoy to come, which was also the most painful moment for the hundred tribes of the Rhino Forest.

The so-called "annual tribute", the demon cultivators of all ethnic groups need to pay not only spirit stones, holy crystals, spirit plants, and holy plants, but also a large number of age-appropriate spirit children.

All demon cultivators who have reached the age of sixteen, regardless of their cultivation, belong to the category of spirit children. At that time, each demon clan needs to gather all the school-age teenagers of their clan for the ancient demon clan envoy to select.

There are three fates for those who are chosen to become a spirit child:

A percentage of the children with poor qualifications will become slave laborers and be assigned to various high-risk gathering jobs. In the Tiandu Demon Realm, basically all the gathering areas will devour the vitality of the creatures that enter it, so as to nourish the growth of their own spirit plants and improve the quality of mineral deposits.

It can be said that slave labor is actually collected by consuming their own precious vitality, and although it is said that they can be released from slavery and returned to their own land after ten years of work, the vast majority of slave laborers cannot survive until the day when the ten years are over. Because they are always consuming their own vitality when collecting, the envoy of the ancient demon clan likes to choose the spirit child, after all, the spirit child's vitality is the most vigorous, and it can last longer in the collection area.

The fate of some spirit children with better qualifications and higher cultivation is even more tragic, they will be given to some dignitaries of the ancient demon clan, and they will devour the spiritual source to nourish and improve their qualifications. If the spirit source is devoured, the spirit child will die directly.

The third fate is where the hope of the spirit child lies. As long as the qualifications and cultivation can meet the requirements of the ancient demon clan, the spirit child will be trained intensively, become the demon soldier of the ancient demon clan, and fight for it in all directions.

The Ancient Demon Clan is very warlike and has been waging wars everywhere almost all year round. The death rate of demon soldiers is also quite high, but it is relatively slightly better than the fate of being reduced to slavery and being directly devoured by the spirit source.

No spirit child will be valued and cultivated by the dignitaries of the ancient demon clan because of his excellent qualifications, and become a disciple descendant. Because the bloodline hierarchy of the ancient demon clan is too strict, the demon cultivators from the slave clan, no matter how good their qualifications are, are only material for demon soldiers at most.

The Ancient Demon Clan would never allow any powerful existence among the slave clan to threaten its own status.

Even so, the demon cultivator boy of the slave clan still cultivated very hard. If they are not chosen as spirit children, they will be able to grow into the mainstay of their community. Even if he is selected as a spirit child, there is a certain chance of becoming a demon soldier. The demon soldiers who died in battle can be exempted from the quota of five spirit children in the coming year.

The vast majority of the slave clan did not dare to resist this extremely cruel oppression, after all, even the strongest among the slave clan was far from the opponent of any demon general of the ancient demon clan. The hot-blooded race has been basically wiped out, and the remaining slave tribes have all chosen to indifferently endure the persecution of the ancient demon clan.

Cao Fan once again checked in detail the relevant memory information of Xie Xiang in the Taishang Nine Realms, only to understand the tragic status quo of these slave clans, and a new plan was quickly brewing in his heart.