The natural environment of the Cave World is very harsh, and all kinds of materials are extremely scarce.

Zhang Qianfeng and Ren Fei were regarded as holy envoys by the people and bears of the Yihu tribe, and they were treated with great respect in the tribe.

Dry beating Agu offered fish and fruits to the two of them, which was already the most delicious food in the tribe.

Zhang Qianfeng and Ren Fei were not idle, the sanitary environment in the tribe was very poor, and if someone and a bear were drenched in acid rain, they would be infected with diseases.

Although there are many herbs on the mountain where the winged tiger lives, the man-bear tribe has not mastered the use of herbs, and once infected with the disease, the only thing is death.

In these days, Zhang Qianfeng selected a few more clever human bears from the Winged Tiger tribe as apprentices, took them to know the herbs on the mountain, and taught them how to use herbs to cure diseases.

Ren Fei was practicing the boxing techniques of the warriors of the Man-Bear Tribe, training them to cooperate with each other to improve their hunting efficiency.

Both of them received Li Changqing's divine sense transmission at the same time, and hurriedly ran towards the cave where Li Changqing was alchemizing.

"Teacher, the elixir has been refined?", Zhang Qianfeng asked with some excitement.

"This is the 'Five Aggregates Yellow Tooth Pill', which has the effect of regulating the five internal organs of the human body, and can at least improve the chance of a three-layer holy fetus!", Li Changqing threw Zhang Qianfeng a jade bottle.

"Thank you, teacher!", Zhang Qianfeng was extremely moved in his heart, and his hand holding the bottle was trembling.

Ren Fei saw that Zhang Qianfeng had already obtained the elixir, and his eyes were full of longing when he looked at Li Changqing.

"This is the Winged Tiger Yuanxin Pill that I refined with the blood of the Winged Tiger, the medicinal power is extremely powerful, not only can it strengthen your body, it contains a trace of the Winged Tiger's soul, which will help you comprehend the will of the martial arts, but this pill is created by myself, whether there are any side effects is not clear, you can think clearly before taking it!"

Among the pills that Li Changqing mastered, there was nothing about martial arts knots, but after all, he had been immersed in pills for a long time, and he had an extremely deep understanding of human medicine, so it was not difficult to create a pill, and the specific effect was still to be discussed.

"I do!", Ren Fei said in a firm tone without the slightest hesitation.

"You have to think clearly!", Li Changqing said with a smile.

"Hmm!"

"Hehe, take it!"

As soon as Li Changqing took out the pill, the entire stone cave was filled with a pungent smell of blood.

"Thank you, Master Li! Although you and I don't have the name of master and apprentice, but we have the reality of master and apprentice, Ren Fei will definitely treat you with a master in the future, if you violate this oath, you will be destroyed!"

Ren Fei raised his hand and said sincerely.

"What I wish is just to pass on the torch!" Li Changqing said lightly.

Zhang Qianfeng and Ren Fei both realized something, and once again respectfully saluted Li Changqing.

"This mountain is where the Winged Tiger lives, and it is considered a place of spiritual opportunity in this cave world, so you can retreat in this cave!

Li Changqing asked Ren Fei and Zhang Qianfeng to retreat, but he himself had no intention of attacking the martial arts Jindan, but instead went to the boulder on the top of the mountain and read the book for seven days and seven nights.

The man-bears of the Winged Tiger tribe have experienced seven days of baptism with the sound of reading with a majestic and righteous spirit, and most of them can learn human language and writing.

Suddenly, the aura in the mountain rioted, forming a whirlpool of aura in the air, but this aura vortex was extremely unstable and could dissipate at any time.

"This is the beginning of the condensation of the Holy Fetus!But it still doesn't accumulate enough like this!", Li Changqing felt that Zhang Qianfeng's spirit might have been consumed too much, and he couldn't hold on until the end of the Holy Fetus, so he sighed, "Hey, that's it!

After speaking.

Li Changqing departed a part of his divine thoughts to stabilize the spiritual energy vortex drawn by Zhang Qianfeng's holy fetus, and the rest of his divine thoughts swept across the surrounding heaven and earth, forcibly detaining all the nearby spiritual qi and replenishing it into the spiritual energy vortex.

In a stone cave.

Zhang Qianfeng's lips were pale and sweating profusely, knowing that he might fail to form a holy fetus this time, the aura vortex that was about to collapse suddenly stabilized, and a more pure heaven and earth aura poured into his body than before.

Coherent.

The Holy Fetus is completed!

In another cave.

Ren Fei's face turned red, blood seemed to drip down his face, and every blood vessel was like an earthworm, and there was even a danger of bursting.

No!

I can't fail!

Martial will?

What is my martial will?

Ren Fei gritted his teeth, his eyes were full of bloodshots, and blood continued to flow out of the corners of his mouth, echoing Li Changqing's words in his mind.

Where to get through for the first time.

In the first operation that Ren Fei participated in, he saw the scene of an ordinary family being slaughtered by a stranger, and dirty blood and internal organs were scattered on the ground casually.

She was completely blown away!

Later, she found the traces of the stranger, and she chased the stranger alone for dozens of miles, and finally arrested the stranger, so that the stranger could get the punishment he deserved.

Black gas erupts.

She led the team to hunt down the fourth-level source of infection, and watched her teammates fall to her side, but she was helpless!

Then.

She wished she was the one who died!

That moment.

She had never had a thirst for power!

She wants to keep the people safe!

She wants to keep her teammates safe!

Guard!

My martial will is to protect!

Ren Fei felt as if his whole body was on fire, the blood in his whole body suddenly accelerated, and his body seemed to be on fire.

Knock knock!

Every time the heart beats, it's like a heavy drumstick falling on a drum.

Ordinary people who encounter this situation may have died of heart palpitations long ago.

But Ren Fei's own martial arts cultivation is extremely high, and the strength and toughness of his body far exceed that of ordinary people, coupled with his extraordinary talent, he forcibly endured it.

More than half an hour.

The heat in Ren Fei's whole body dissipated, his eyes were restrained, and he clenched his fists and felt that his muscles were full of explosive power, as if his body had become a little lighter.

Zhang Qianfeng and Ren Fei both remembered Li Changqing's words, as long as they arrived in seven days, they would come out of it no matter what.

After a little breathing, the two of them walked out of the stone cave and followed the sound of reading to the top of the mountain to find Li Changqing.

"If it wasn't for the teacher's help just now, I'm afraid I would have failed!", Zhang Qianfeng ate a bottle of Wuyun Yellow Tooth Pill, but he almost didn't succeed in conjuring a holy fetus, and said with a smile on his face.

"I'm also helping to grow seedlings, resulting in your foundation not being very stable, and if I pass on a method that contains gods to you in the future, you must practice diligently, and there will be hope of knotting Dan in the future!", Li Changqing admonished.

"Uh-huh. I know my own qualifications very well, if I hadn't met you, teacher, I might not have been able to condense the holy fetus in my life, let alone in such a short period of time, I was already very content!", Zhang Qianfeng didn't care about the authenticity.

"Master Li, my situation is very special, and I don't know what my situation is......," Ren Fei said very embarrassedly.