Mortal: I became invincible after becoming sworn brothers with Han Li.

"This is..." Li Yunfan looked at his younger sister in his arms with a strange expression, feeling shocked and puzzled.

"Fan'er, what's wrong?" Madam Yang asked with some concern when she saw that Li Yunfan's expression was somewhat unusual.

"Mother, did Father test Yunshu's spiritual roots?"

Upon hearing this, Madam Yang was taken aback, and seemed to have some guesses in her mind. She shook her head and said, "Yun Shu is not even five years old this year, and there have been many things going on in the family recently, so your father hasn't had time to test Yun Shu yet... Could it be that Yun Shu also possesses a spiritual root?"

"Yun Shu does indeed possess a spiritual root, and it's a heavenly spiritual root with exceptional cultivation aptitude!" Li Yunfan nodded, saying with a hint of envy.

This is an exceptional talent that all the major cultivation sects are vying to accept as disciples. How could he, a pseudo-spiritual root, not be envious? Although his Fire Spiritual Body is no weaker than a Heavenly Spiritual Root, it is not something that Li Yunfan was born with. It was only unlocked by accidentally consuming a spiritual fruit. If he hadn't had that kind of opportunity, he probably wouldn't have been able to break through to the Foundation Establishment stage.

Thinking of all this, he once again thought of the spiritual fruit he had eaten. He had consulted various books in Huangfeng Valley, but he had not found a single record of that spiritual fruit, which made him feel quite helpless.

Upon hearing Li Yunfan's praise, Madam Yang was initially delighted that her child was a genius. However, when she thought of her youngest daughter, who would also begin cultivating in the future and would not be able to stay by her side often, she felt a pang of melancholy.

Seeing the unusual expression on his mother's face, Li Yunfan quickly guessed what she was thinking and gently comforted her.

"Mother, with Yun Shu's talent, she only needs to cultivate for a few hours each day, and she can still stay by your side the rest of the time. Moreover, I will stay at home for a while after I come back this time, and I plan to join a sect in Xi Kingdom later, so that I can come back to see you more often."

Upon hearing this, a gentle smile appeared on Madam Yang's face, and she felt extremely gratified to have a son like Li Yunfan.

As evening approached, in a side hall of the Li family compound, Li Qingzhou, Li Heng, two clan elders, and Li Yunfan sat together, recounting their respective developments and experiences over the years.

It was only then that Li Yunfan learned the reason why the Li family chose Tongbei Mountain, which filled Li Yunfan with joy.

"I never imagined that ley line fire could exist deep within this place!"

"Yes, if it weren't for this reason, why would I risk offending the Gongsun and Situ families to settle the Li family here?" Li Qingzhou said with a light laugh.

Although the fire of the earth veins and the fire of the earth's lungs differ by only one character, they are fundamentally quite different.

First, the fire of the earth's lungs is a spiritual fire that can only be born in the land of Xuan Yang, while the fire of the earth's veins has no such restriction and can be born as long as there are fire veins underground.

Secondly, there is the power. The fire of the earth vein is three times more powerful than the innate true fire of a Foundation Establishment cultivator, while the fire of the earth vein is relatively much weaker. The strongest of them is only about the same strength as the innate true fire, but most of the earth vein fire is very weak and can only be used to refine ordinary low-grade magic weapons.

Li Yunfan nodded in agreement upon hearing his father's words. The Li family's cultivation method had long since been changed to the Nine Revolutions Burning Heaven Technique, and possessing a piece of earth vein fire naturally brought many benefits.

However, the Gongsun and Situ families have occupied this place for many years. Did they not know that there was a ley line fire beneath Tongbei Mountain? If they did know, why did they so easily give it to the Li family? So Li Yunfan directly asked the question that was on his mind.

"Hehe, of course they know. However, neither of them cultivates fire-attribute techniques, so even if they occupy this place, it won't be of much use. They can only use it to refine some low-level magic artifacts. Moreover, I waited until Li Heng successfully broke through to the Foundation Establishment stage before negotiating with them. After paying some spirit stones, they were wary and gave us the mountain."

"Yes, that's good! There are only three families in the Qingxia Mountains, and we are outsiders who moved here from the Yue Kingdom. It's better not to get too entangled with the other two families, otherwise it won't do us any good." Li Yunfan nodded and agreed.

At this moment, Li Yan, the clan elder dressed in a green robe, also spoke with a smile.

"Indeed! With this earth vein fire, plus the cultivation technique you, Yun Fan, passed on to the family, our Li family will be able to continuously produce mid-Foundation Establishment cultivators in the future. At that time, no matter what those two families have any ideas, they will simply not be a match for the Li family!"

Li Heng nodded in agreement. After breaking through to the Foundation Establishment stage, he was informed of the cultivation method by the patriarch and two elders, so he was not surprised to hear about it now.

"Having only mid-Foundation Establishment cultivators is still too weak. The Li family must intensify its efforts to find other spiritual fire lands in the future. Only in this way can the Li family improve its strength as soon as possible! No matter how many Foundation Establishment cultivators there are, they cannot withstand the attacks of Core Formation and Nascent Soul cultivators. If the Li family wants to truly become the number one family, the clan must have at least several Core Formation cultivators in charge!"

After a moment of contemplation, Li Yunfan slowly uttered words that invigorated the group.

The title of the number one family in the cultivation world is too great and too tempting!

Especially the two clan elders, Li Lie and Li Yan, who are over a hundred years old, have lived on Qingmu Mountain in Yue Kingdom since childhood. The Li family has always been a weak and small family. Now that they have five Foundation Establishment cultivators, they would be laughing in their dreams.

The number one family that Li Yunfan mentioned had several Core Formation cultivators in charge, which was something he never dared to dream of before.

But things are different now, because they have the Nine Revolutions Burning Heaven Technique, a large number of pill formulas to improve cultivation, and most importantly, they have Li Yunfan, the young master of the family!

"Yun Fan, the Yue Kingdom has now been occupied by the demonic path, and Huangfeng Valley has also retreated to the Beiliang Kingdom. So, when you return to your family this time..." Li Qingzhou asked in a deep voice.

"Father, Elders of the clan. Actually, I plan to join the Luoyun Sect of Xi Kingdom. Now that the Li family has settled in Xi Kingdom, if I join a sect in Xi Kingdom, I will naturally be able to help the Li family more in the future." Li Yunfan said his thoughts directly.

Upon hearing this, the two elders exchanged a glance, and then Elder Li Lie nodded with a smile.

"Indeed, it seems you and we two old folks have the same idea. With your talent, Yun Fan, staying in the Li family will only hinder your cultivation. Only by joining one of the major sects can you unleash your full potential!"

At this moment, Li Qingzhou frowned slightly and said, "As far as I know, although Luoyun Sect is also a top sect in Xi Kingdom, its strength is somewhat inferior to the other sects. Given that the Nine Revolutions Burning Heaven Technique requires refining spiritual fire, the Hundred Crafts Academy, renowned for its weapon crafting, is the best choice. They must have powerful spiritual fire supporting them. If you join them, wouldn't you be able to directly obtain a spiritual fire?"

He paused for a moment after speaking, and then continued.

"You are now in the late Foundation Establishment stage. Once you refine one more spiritual fire, you will be able to advance to the Core Formation stage..."

Upon hearing this, the two elders' eyes lit up, and they quickly echoed his sentiments.

"Qingzhou is right. Yunfan, you've just arrived in Xi Kingdom and don't know much about the sects here yet. Baiqiao Academy is indeed more suitable for you than Luoyun Sect!"

Li Yunfan gently shook his head, then explained his reasons, only omitting anything about Han Li. After all, even if he told him, the other party might not believe him, so it was better not to say anything.

After some debate, the two elders and his father finally breathed a sigh of relief and agreed to let him join the Luoyun Sect.

As for Li Heng, he just watched the show from the sidelines and had no intention of participating in the debate.

After this matter was settled, Li Yunfan told the others that his younger sister, Li Yunshu, possessed a Heavenly Spiritual Root.

As Li Yunfan had expected, the group of people who heard this bombshell news were stunned and stood there for a while. After they came to their senses, they excitedly asked him to confirm the news again and again.

Upon receiving Li Yunfan's affirmative answer, the two elders burst into tears of joy. For the Li family, a cultivator with a Heavenly Spirit Root was indeed an incredible stroke of luck.

When a family encounters such a genius, their first thought is not to train him themselves, but to send him to various sects as a disciple, because only in this way can the family's interests be maximized.