In Lin knew that her spiritual root wasn't particularly good; otherwise, she wouldn't have been lingering in the Yu Shen Realm for so many years. So, after testing her aptitude, she didn't seem too disappointed.

After In Lin stepped down, Zhai Butong sat down to test his spiritual root. His spiritual root was similar to In Lin's; even if it was a bit better, it was only marginally so. After the black pillar in the middle of the testing artifact turned white, it was also mixed with a lot of greyish-black colors.

Shi Li sighed. He knew that Wei Jie probably wouldn't recruit disciples with good aptitude. Even after seeing that In Lin and Zhai Butong's aptitudes were terrible, he still couldn't hide his disappointment.

After Zhai Butong came down, Shi Li said to Ku Cai, who was standing timidly to the side, "You come and test it."

Su Xia knew Ku Cai's personality. Seeing that Ku Cai didn't dare to step forward, she had no choice but to grab Ku Cai's hand and say, "Junior Sister Ku Cai, the sect leader is like our family. Now that you're here, we are one family. Go and test it; no matter how good or bad your aptitude is, there's nothing to worry about."

Ku Cai hummed softly, walked to the testing artifact, sat down, and then circulated her cultivation technique.

The black pillar behind the testing artifact burst out with a dazzling white light, as if a layer of black cloth had been peeled away. It suddenly became pure white, and not only that, but this pure white faintly radiated a faint glow.

The eight pillars on both sides of this pure white pillar were also pure white, but now, compared to this pure white pillar representing spiritual root aptitude, their white was obviously lacking a kind of spiritual aura.

Shi Li took a step forward excitedly, almost reaching out to grab Ku Cai.

"This is a Flawless Spiritual Root..." An elder muttered to himself, his hands even trembling.

In the God Realm, there are many kinds of spiritual roots. Top-tier spiritual roots are even more varied, but the Flawless Spiritual Root is definitely the top of the top-tier spiritual roots.

Any supreme-grade spiritual root will have some faint grey shadows when tested with the testing artifact. Of course, a very small number of grey shadows will be ignored.

A spiritual root like Ku Cai's, where the testing pillar not only has no grey shadows but is also so pure white that it emits a faint glow, can only be one thing: a Flawless Spiritual Root.

No matter how a Flawless Spiritual Root comes to be, it will never change. For example, if it's a Flawless Spiritual Root in the cultivation world, it will still be a Flawless Spiritual Root after ascending to the Immortal Realm and undergoing spiritual root transformation. This is one of the very few spiritual roots that doesn't change with transformation.

"Elder Wei Jie, thank you, thank you..." Shi Li grabbed Wei Jie, who looked bewildered, and was so excited that he became incoherent.

Even in the top-tier sects in the God Realm, a Flawless Spiritual Root might not exist. Which ever sect has a disciple with a Flawless Spiritual Root, that disciple is definitely the sect's number one disciple, the most important person to nurture. In other words, if other sects knew about Ku Cai's spiritual root, she would definitely be the object of every sect's grab.

Wei Jie was still preparing an excuse for himself but didn't expect to have recruited a Flawless Spiritual Root. Coming back to his senses, he said solemnly, "I used many methods to bring Ku Cai back to the sect, and fortunately, I finally lived up to my expectations."

"That's not right, look at her spiritual root attributes..." Elder Xu Yi suddenly exclaimed.

Without Elder Xu Yi's shout, everyone's gaze fell on the eight pure white pillars on both sides of the testing artifact.

One of these eight pure white pillars had actually turned black, and another one had actually turned blue.

"What's going on? What attribute spiritual root is black?" Everyone looked at each other in dismay, completely not understanding why there was black. Blue, on the other hand, was known to indicate a lightning spiritual root.

If there was no black in Ku Cai's spiritual root attribute test, only a lightning spiritual root, then it would have been a rapturous thing for Tian Fan Sect, but now, the sudden appearance of black in her spiritual root attribute made everyone feel uneasy.

"I know why this is." Pang Fengban suddenly stood out. He was not only an elder of Tian Fan Sect but also a descendant of Pang Jie.

"Elder Pang, what's going on?" Shi Li asked eagerly; he was most anxious about Ku Cai's spiritual root attributes. With a person of Ku Cai's aptitude appearing in Tian Fan Sect, there was a very good chance that they would regain their former glory.

Pang Fengban said in a deep voice, "My grandfather told me back then that in the most ancient times, cultivators only had two kinds of spiritual roots."

"There are eight kinds of spiritual roots; how could there only be two?" Several elders said simultaneously.

Although there were questions, no one doubted Pang Fengban's words because Pang Fengban was the grandson of Tian Fan Sect's Pang Jie. Pang Jie was only an outer sect disciple, but if it hadn't been for Pang Jie back then, Tian Fan Sect would have disappeared into the river of history long ago.

Pang Fengban said, "It's not wrong to say eight kinds because there are indeed only eight kinds of spiritual roots in the God Realm now. In fact, in the ancient era, there were only two kinds of spiritual roots: light and darkness. Among them, the light spiritual root is divided into eight series: gold, wood, water, fire, earth, wind, lightning and ice, while the dark spiritual root has only one series, which is darkness. According to this division, spiritual roots can actually be said to be nine kinds, namely gold, wood, water, fire, earth, wind, lightning, ice and the dark spiritual root."

"Elder Pang, are you saying that Ku Cai's spiritual root is a dark spiritual root and a lightning spiritual root?" Shi Li asked in shock.

Pang Fengban nodded and said, "That's right, the black pillar of spiritual root attribute is indeed a dark spiritual root. The only thing that makes me strange is that I heard that the dark spiritual root cannot coexist with other spiritual roots, let alone a lightning spiritual root?"

"But we haven't heard of the dark spiritual root?" Elder Xu Yi frowned slightly. His cultivation base wasn't high, but his knowledge wasn't little. Having lived in the God Realm for so many years, he couldn't possibly not know how many series of spiritual roots there were in a realm.

Pang Fengban sighed and said, "My grandfather told me back then that dark spiritual roots exist in the vast universe and are not in the same plane as our God Realm. In other words, our plane does not have dark spiritual roots. The only explanation for Ku Cai having a dark spiritual root is that she is not from our plane."

"An outsider cultivator?" Everyone looked at each other.

If there was one existence in the God Realm that everyone feared and wanted to kill, it would be an outsider cultivator.

In the God Realm, whether cultivators ascended from the Immortal Realm, or from the Demon Realm, the Devil Realm or other realms, they are all cultivators from the same plane, and they cultivate the same system.

Cultivators from the same plane, even if the realms have different levels, will ascend to the same cultivation system if they cultivate to the extreme. Over a long period of time, the plane where the God Realm is located has been called the Seven Realms plane. It's just that whether it's the God Realm or the lower planes, everyone is in the same plane, and there is no comparison, so no one cares what their plane is called.

But outsider cultivators are different. They are not from any realm of the Seven Realms plane; they are from another plane. Because the cultivation system is different, the divine power laws are different, and it will cause everyone's understanding of the Great Dao to be completely different.

Once, an outsider cultivator came to the Seven Realms plane and appeared in the God Realm. After he realized that the Seven Realms plane's cultivation system was completely different from what he understood, he had the idea of establishing his own cultivation system in the Seven Realms plane.

This kind of idea was naturally not accepted by the cultivators of the Seven Realms plane.

In the end, it was a world-shaking bloody battle, which was a dispute over the Great Dao. Rumor has it that in that battle, countless powerhouses died in the God Realm, and as for the God Kings who were killed, there were hundreds and thousands of them.

Imagine that there are not even a hundred God Kings in the entire God Realm now. What did the death of hundreds and thousands of God Kings back then mean?

Fortunately, the powerhouses of the Seven Realms plane finally exhausted all of this outsider cultivator's power and killed him.

Despite this, after so many years, there are still not many God Kings appearing in the God Realm.

Since then, outsider cultivators have been a taboo in the God Realm. This is because the Seven Realms plane has never had outsider cultivators. Once they appear, one can imagine what kind of earth-shattering waves they will cause.

If an outsider cultivator appeared in Tian Fan Sect, would Tian Fan Sect still have a chance to exist?

Everyone was thinking about one thing in their hearts, that was to kill Ku Cai. Only by killing Ku Cai would the fact that Ku Cai was an outsider cultivator not be exposed.

Shi Li was extremely depressed. Tian Fan Sect had finally produced a peerless genius, and Tian Fan Sect had to kill her. This was simply...

Everyone felt that Ku Cai should be killed, but no one was willing to say it proactively, and no one was willing to do it.

There weren't many people in Tian Fan Sect, and the divine spiritual energy was extremely scarce, but everyone lived very peacefully, just because everyone in Tian Fan Sect believed that as long as they entered Tian Fan Sect, they were one family.

Just as everyone didn't know how to deal with Ku Cai, a series of violent thunder sounds suddenly came from outside the sect.

Hearing the sound of thunder, Shi Li was immediately furious, "My Tian Fan Sect has declined, and we don't go out to compete for anything. But if someone wants to treat my Tian Fan Sect as an existence that can be trampled on at will, even if my Tian Fan Sect dies out, we will definitely resist to the end."

After saying that, Shi Li's figure flashed, and he rushed out of the sect hall.

The other elders rushed out one after another. Everyone knew why Sect Leader Shi Li was angry. That was because someone actually dared to undergo tribulation in Tian Fan Sect, which was simply more unbearable than pointing at their nose and spitting.

In Lin glanced at Ku Cai, who was still cultivating, sighed, and didn't speak. She had also heard some stories about outsider cultivators. She really wanted to help Ku Cai, but she couldn't help her.