Chen Yuanyuan and Chun Yin had already felt the strong pill energy and were waiting in front of the quiet room door.

The door opened, and Xiao Yi walked out of the room with the Wuji Pill in his hand.

Chen Yuanyuan's eyes violently brightened when she saw the soft white pill. Suppressing the wild joy in her heart, she asked, "Xiao Yi, is it ready?"

Xiao Yi nodded slightly.

The three of them immediately came to Jiuer's cold Yu Feiyan bed.

"Senior Chen, it is also my first time to treat this Nine Yin Extreme Meridian. I don't know how long it will take. This process requires absolute silence. If I am careless for a second, the consequences will be huge. In order to prevent this from happening, please protect me, Seniors," Xiao Yi said slowly.

"Sure. As long as my senior sister and I are here, Xiao Yi, you can rest assured and focus on the treatment." Chen Yuanyuan immediately said.

The protection of these two Nascent Soul Realm Realm-stage experts should be enough to deal with any possible accident.

After thinking for a while, Xiao Yi said, "Besides, Senior Chen, please remove the clothes on Jiuer's body. The Nine Yin Extreme Meridian must be pierced through the eight extra meridians with a golden needle. It's inconvenient with the clothes on."

Upon hearing this, Chen Yuanyuan didn't hesitate at all. She immediately nodded and gently helped her daughter up, making her sit cross-legged on the cold Yu Feiyan bed, and gently removed her clothes.

Chun Yin was afraid that Chen Yuanyuan would be too excited if she were here, so she called Chen Yuanyuan together and walked out of the tomb. They sat cross-legged at the entrance of the tomb to protect Xiao Yi.

The tomb room became quiet in an instant.

Under the dim light of the lamps, the cold air emanated from the cold Yu Feiyan bed.

It was none other than Jiuer in the misty air!

It was hard to describe what kind of scene it was. In short, it gave Xiao Yi an extremely unreal feeling, as if it was just a beautiful illusion.

Her body was voluptuous and faintly discernible in the cold air, but it made it impossible for anyone to feel the slightest bit of blasphemy. It was as if the world's best and most beautiful thing should be like this.

Xiao Yi took in a deep breath and woke himself up from his trance and shock. He also sat cross-legged on the Yu Feiyan bed next to Jiuer.

First, he gently removed the string of Red Flame Bead hanging from her chest.

Once the bead was removed, the pure Yang energy that had been protecting Jiuer for hundreds of years immediately disappeared. A layer of frost instantly covered her body.

Xiao Yi's heart jumped. Seizing the opportunity, he immediately raised his hand. The long needle on his arm immediately buzzed and vibrated, arriving between Xiao Yi's three fingers.

Taking a deep breath, the needle tip pierced the Baihui Acupoint on the top of Jiuer's head like lightning. Then, he put the needle down the Ren vessel, went to the Huiyin Acupoint, and then went up all the way in the direction of the Governor vessel slowly.

It was easy to imagine how difficult it would be.

Not only did it require a powerful Divine Awareness, it also required extremely long-term True Energy to control the needle.

This was also why Xiao Yi said at that time that he could only rescue people when he reached the Gold Elixir Realm at least.

However, even if he had reached the mid-stage of Nascent Soul Realm Realm, it would still be extremely difficult for him to use it.

Xiao Yi's eyes were tightly shut. Wherever the golden needle passed, pure Internal Force would flow through. A little bit of controlling the needle would open up Jiuer's meridians.

When the Ren vessel and the Governor vessel were completely connected, Xiao Yi's hands kept springing out. The next moment, he pierced into Jiuer's Chong Meridian again, then led it to the Dai Meridian, and finally, the eight extraordinary meridians were finally connected. The thirteen-meter-long needle was inserted into Jiuer's body.

Xiao Yi felt more and more tired. Beads of sweat rolled down his cheeks, and his whole body shivered.

It was easy to imagine how difficult it was to operate the thirteen-meter-long golden needle with just one breath of True Energy.

When the needle was thoroughly connected, Xiao Yi was on the verge of collapse.

And this was only the first step in the treatment.

This caused Xiao Yi's heart to involuntarily feel a little bitter. From the looks of it, it was obvious that the difficulty of this matter was very high.

However, there was no reason for him to retreat at this moment.

Without wiping off the sweat on his face, a Jadeite Elixir immediately appeared in Xiao Yi's hand. The next second, it was thrown into Xiao Yi's mouth and quickly replenished his True Energy.

Then, he put his True Energy into the needle with the three fingers of his right hand.

Jiuer's body began to tremble slightly as soon as True Energy was injected. Gradually, a bright red color appeared on the surface of her body.

Xiao Yi knew that this was the heat formed from the Red Flame Bead that Jiuer had worn all year round. Now, it had been forced out by Xiao Yi's True Energy.

As soon as the heat dissipated, a layer of frost began to form on the surface of Jiuer's body.

Xiao Yi didn't dare to neglect it. He immediately turned over his right hand, and the Wuji Pill appeared in his hand. He gently knocked Jiuer's white teeth and put the pill into her mouth.

The pill melted and turned into a warm current that slowly flowed into Jiuer's stomach.

Frowning, Xiao Yi stared fixedly at Jiuer. He didn't dare to let go of the slightest change at this moment.

As the pill melted, a slight low sound came from her stomach. Then, the cold air began to flow out from every pore of his body.

Xiao Yi knew that this was the efficacy of the Wuji Pill. As soon as it began to work, Xiao Yi's spirit was refreshed again, and he injected his True Energy into the long needle. With the help of the Wuji Pill, he expelled the innate cold aura in Jiuer's body.

Gradually, the cold aura was forced out of Jiuer's body, forming a white shield around her. It also wrapped Xiao Yi in it. This made Xiao Yi very shocked. It turned out that her body had such terrible cold Qi. The Nine Yin Extreme Meridian was really extraordinary.

Xiao Yi immediately closed all the pores in his body and carefully prevented the cold Qi from entering his body.

This method of controlling the needle consumed a great deal of True Energy. It didn't take long for Xiao Yi's True Energy to be almost gone.

Xiao Yi looked at the treatment that it had not been finished and could not help but hesitate.

Under the circumstances, if he took another Jadeite Elixir, he might not be able to drive away the cold Qi in Jiuer's body. And Xiao Yi knew better than anyone the consequences of taking two pills in a row. It was a kind of method to stimulate one's potential forcibly. Taking more would do harm to him. Maybe his body would be damaged, and even his cultivation would be reduced.

But at this moment, there was no way out. Looking at the pure and beautiful girl, who was full of fate, and thinking of the hundreds of years of the bitterness of Chen Yuanyuan, Xiao Yi sighed. He immediately made up his mind and took the risk of taking another Jadeite Elixir.

However, with a thought slipped, he was actually invaded by the cold Qi that seeped out from the Jiuer's body.

"Not good." Xiao Yi's heart throbbed, and his entire body shook as he tried to expel the cold air from his body.

However, it was too late. He suddenly felt that the cold Qi did not make him uncomfortable when it entered his body. Instead, it slowly blended with the Pure Yang Qi in his body, combining Yin and Yang. Then, it turned into a warm current and slowly flowed into his Elixir Field.

In the Elixir Field, the True Energy, which was about to be exhausted again, increased slightly.

"Huh?" Xiao Yi was shocked. He never imagined that this kind of cold Qi in Jiuer's body, which could almost kill her, would greatly benefit him.

"What is going on?" Xiao Yi's heart moved. Although his heart was shocked, he also gave it a try and once again absorbed the cold Qi.

As expected, the cold Qi once again slowly fused with the pure Yang energy in his body. Finally, it turned into the precious True Energy!

Xiao Yi was shocked, but he figured it out after a while.

Jiuer got the Nine Yin Extreme Meridian. From the moment she was born, her body had automatically absorbed the purest Yin Energy between heaven and earth. Gradually, the Yin Energy within her body flourished, and the Yang energy vanished. This was the root cause of her illness.

The Yin Energy in her body was the coldest thing in the world, and it could not be detoxicated by common drugs. But to be honest, it was a unique energy between heaven and earth, a kind of purest energy.

This kind of purest energy had become extremely pure after so many years in Jiuer's body. For Xiao Yi, who had been cultivating the Pure Yang cultivation, it could balance Yin and Yang. Yin and Yang supplemented with each other, which could increase Xiao Yi's True Energy.

At the thought of this, Xiao Yi was pleasantly surprised. He immediately opened all his pores and absorbed the cold Qi from Jiuer's body with all his strength. Then, he turned it into True Energy and placed it in his Elixir Field. Xiao Yi lifted it up and turned it into pure Yang Qi, which was injected into Jiuer's body.

In this way, he completed a cycle.

However, Xiao Yi suddenly realized that this was actually a kind of Dual Cultivation.

Since ancient times, the purest method of the Taoists' Dual Cultivation had always been like this.

At the thought of this, Xiao Yi couldn't help but feel that something wasn't right. However, the most important thing at the moment was to save Jiuer's life. So he could only restrain his mind and continue like this.

At this moment, he didn't have to worry about running out of True Energy. Not only that, but the efficacy of the Wuji Pill slowly flowed into Xiao Yi's body along with the cold Qi of Jiuer. The pure and strong efficacy made Xiao Yi intoxicated. For a moment, he was utterly lost in it.

He did not know how long had passed.

Chen Yuanyuan and Chun Yin finally felt anxious. When they went to the tomb to check, they were surprised to see a large Qi shield slowly rotating on the cold Yu Feiyan bed, where two people were sitting opposite each other.

Both of their eyes were closed and their hands were clasped. A long white Qi slowly came out of Jiuer's mouth and was inhaled into Xiao Yi's nostrils. Then, a wisp of pale golden Qi came out of Xiao Yi's mouth and was slowly inhaled by Jiuer.

Each time their Qi circulated, their cultivations increased by a notch.

In particular, Jiuer's cultivation grew at a speed visible to the naked eye. At this moment, she had already reached the late stage of the Qi-refining Realm. If it weren't for the Foundation-building Pills that had been needed to improve from Qi-refining to Foundation-building Realm, Jiuer would have already successfully reached Foundation-building Realm.

And Xiao Yi's cultivation level rose from the middle stage of the Nascent Soul Realm Realm to the late stage of the Nascent Soul Realm Realm!