Heavens upgrade system

After walking out of the forbidden area, Yunfan said to several people: "After dawn, go find out where the Shennong Cave is? We are leaving in three days. Don't let go of your cultivation these days. Your cultivation is improving too fast, you need to adapt quickly!"
The four of them agreed very much with what Yun Fan said, and nodded their heads in agreement.

For the next three days, the four of them completely put aside everything else and devoted themselves to practicing swordsmanship, which greatly improved their strength.

And in these three days, the address of Yandi Shennong Cave has also been found out, so I decided to go there early tomorrow morning.

On the morning of the fourth day, the five people gathered at Jianwuping, and then they left the mountain gate and flew towards Shennong Cave with their swords.

When the five people came to Yandi Shennong Cave, they found that it was extremely hot here.

Feeling the extremely hot environment in the cave and the magma flowing everywhere, Han Lingsha couldn't help saying: "It is said that Yandi Shennong Cave is the place where Emperor Yan was born, cultivated all kinds of herbs, and tamed all kinds of beasts, but I didn't expect the environment to be so hot!"
Murong Ziying also agreed: "Indeed, the extreme heat here is a bit abnormal"!
Yun Tianhe scratched his head aside: "Do you all feel hot? I think it's okay, just a little warmer than usual"!
Han Lingsha glared at him when she heard the words: "You don't have the right to speak, and you are not afraid of cold and heat"!
At this time, Liu Mengli also expressed her doubts: "Is the elder Qingyang really not mistaken? How can there be such a hot place as the most yin and cold things?"
"Don't worry, there must be some here. The yin and yang are needed. Since the outside of this place is very hot, the inside may be shady. Let's take a look as we walk!"After Yunfan finished speaking, he took the lead and walked inside.

After several people wandered around the Shennong Cave for an hour, they found a fainted woman beside a lava flow, and next to this woman was a monster that looked like a lion and was about to eat her.

Murong Ziying is the one who hates monsters hurting people the most, so he hurriedly stepped forward and yelled: "Monster, you can hurt people!"
Immediately, he squeezed the sword formula with both hands, and directly killed him with three moves.

"Huh! This is a girl"?
At this time, the four of Yunfan also came to the front, but why did a woman appear in this Shennong Cave, where the environment is harsh and full of ghosts?

But if you want to know the answer, you must wake her up. Yun Fan waved a green energy into the woman's body, and she woke up after a while.

"How are you? Why are you here"?Seeing that the woman was awake, Han Lingsha quickly knelt down and asked.

"What's wrong with me"?It seemed that the girl was a little confused just after waking up.

"When we came, we saw you fainted on the ground and almost killed by the monster, so we shot and killed the monster!"Han Lingsha pointed to Murong Ziying and said, "Go to him and kill that monster for you"!
The girl thought about the scene at that time, covered her mouth and exclaimed: "Ah! That's too dangerous!"
But then he reacted again, and thanked Yunfan and the others: "You must have saved me, right? Thank you"!
Murong Ziying shook her head coolly and offended: "You're welcome, we're cultivators of immortality, we should slay demons and demons, but... you're a girl, what are you doing here?"
The girl explained: "My name is Chu Bihen, and I originally lived in the Yandi Shennong Cave"!
In fact, she knew who she was without telling Yunfan, but Yunfan didn't like her.

How should I put it, she selfishly used the Burning Flame Stone so that she could become a fairy and get out of Yandi Shennong Cave.

Although in the end she was completely wiped out by her burning flame stone, but because her sister was a symbiotic body with her, her soul was also scattered.

Although her idea was only to get out of the Yandi Shennong Cave, she still abandoned her sister who had been with her for thousands of years knowing that the Burning Flame Stone could only make one person become a fairy. Selfish!

But this is also an opportunity to change the plot, as long as Chu Bihen realizes his mistake and doesn't use the burning stone.

Yun Fan had just finished thinking on this side, and Chu Bihen on the other side also finished talking with Han Lingsha and the others, and invited them to the "Yueyou Realm" inside Shennong Cave.

But Yunfan knew that she wanted some people to help her find the Burning Flame Stone, but he didn't point it out, and walked towards the Yueyou Realm under Chu Bihen's guidance.

After walking around for a long time, several people finally came to a water curtain.

According to Chu Bihen, behind this water curtain is the Moon Nether Realm, which is cool and cold inside, and this water curtain just cuts off the hot breath outside.

After several people passed through the water curtain, except for Yun Tianhe and Chu Bihen, they all shuddered, it was too cold.

"Oh my god! It's so cold here, it's just the opposite of outside!"Han Lingsha uttered in surprise, her words were foggy.

Yun Fan also took a look at the Nether Moon Realm. The area is not very large, so you can see it at a glance.

It was empty inside, except for a huge tree growing in the middle.

And there was a woman sleeping under the tree, looking at her appearance, she looked similar to Chu Bihen.

Chu Bihen stepped forward to wake up her sister Chu Hanjing and told her that an outsider was coming.

Chu Hanjing was also dazed for a while before he came to his senses, and asked Chu Bihen, "Why is there a stranger here?"
Chu Bihen told Chu Hanjing that the purpose of Yunfan and the others coming here was to find something extremely dark and cold to save people.

Murong Ziying also clasped her fists politely and said: "It's a last resort to disturb you. If the girl knows, please don't hesitate to teach me!"
Chu Hanjing pondered for a while, then turned around directly: "Go back! I have nothing to say."

Now, Chu Bihen became anxious, and said to Chu Hanjing: "Sister, you can't do this! For so many years, only these people have entered this cave, and they still have mana. If you miss this time, how long will you have to wait?" , someone will help us find the Scorching Flame Stone!"
Chu Hanjing looked at Chu Bihen, his voice trembling a little: "Bihen you...have you still not given up after so many years"?
"I can't give up, I want to find that stone even in my dreams"!Chu Bihen yelled directly at Chu Hanjing.

Seeing this scene, Yun Fan shook his head. Chu Hanjing clearly knew where the Burning Flame Stone was, but she didn't want to use it.

It was just to save the life of his younger sister Chu Bihen, but Chu Bihen couldn't appreciate Chu Hanjing's good intentions at all.

After the last dispute, Chu Bihen spoke out.

This tree is called the Thoreau Tree in the Realm of the Moon, and she and Chu Hanjing are the Thoreau Tree Immortals, who were born after Shennong injected his own aura into this tree.

However, although they became half-immortal bodies after birth, they only had a cold air in their bodies.

If you want to become a fairy, you must use a kind of spiritual thing called a burning stone to fit together. At that time, the top of the Thoreau tree will bear fruit, and they will become earth immortals, so they don't need to be trapped in the Yandi Shennong Cave.