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

Back in the damp cave, Li Yunfan immediately set up a protective array before sitting cross-legged on a large rock, frowning as he pondered the information he had just received.

The Hanchi clan seems to be shrouded in mystery, exuding an eerie aura.

For example, as the other party said, their race came to live deep underground tens of thousands of years ago and has never returned to the surface. So how did that cold air passage appear?

Such a long passage could not possibly have been formed naturally; it must have been created by human intervention!

But the other party kept claiming that no one had set foot in this place for tens of thousands of years. If that were true, how did they learn the human language?

Moreover, upon seeing such an "outlier" as him, both the male and petite female Han Chi were clearly very curious. Only the female Han Chi, who was at the late Core Formation stage, showed no surprise whatsoever, as if she had known about the human race for a long time...

"You want me to help retrieve the treasure, and then you'll send me back to the surface? I'm afraid that after retrieving the treasure, it will be my death day!" Li Yunfan narrowed his eyes and sneered inwardly.

He wouldn't easily believe what the other party said. Wasn't the other party afraid that after he went out, he would spread the news about their Hanchi clan and attract the attention of other cultivators?

Such a mysterious race would definitely arouse the curiosity of Nascent Soul cultivators. With the cultivation level of that female Han Chi in the late stage of Core Formation, how could she possibly withstand a Nascent Soul cultivator!

Moreover, he is Han Li's older brother. It would be truly strange if he were to believe him so foolishly.

"Regardless of what their plans are, I should focus on healing my injuries and restoring my cultivation to its peak before considering how to escape..."

After thinking it over, Li Yunfan immediately took out a bottle of pills, rubbed the bottle, sighed softly, then poured out a pill and swallowed it, closing his eyes to begin repairing the damage in his body.

Now that his cultivation level has dropped to the mid-stage, and his meridians have also shrunk somewhat, it will not be easy for him to fully recover.

Most importantly, he had already used up most of his pills in his efforts to subdue the blue-white spirit fire. Judging from the current state of the Hanchi clan, they were clearly not the type to cultivate spiritual herbs and refine pills. If he ran out of pills and couldn't recover to his late-stage cultivation level, his situation would be truly dire!

"I wonder how that female demon managed to cultivate to the Core Formation stage..."

This was the last thought that popped into his mind after he began his recuperation, after which he completely focused on refining the medicinal power of the pills.

Soon, three months passed quietly. During this time, Li Yunfan had fully recovered his meridians and his blood and qi returned to normal.

Next, all he needs to do is advance his cultivation to the late stage, but he doesn't have many pills left. According to his calculations, these pills will only allow him to cultivate to the peak of the mid-stage at most.

Just as he was concentrating on his cultivation, his divine sense suddenly sensed something, and he opened his eyes to look outside the cave before closing them again.

Outside its cave, the male Han Chi was still muttering something, driving away all the male and female Han Chi that had surrounded it. It itself remained standing outside the cave, guarding Li Yunfan inside.

Li Yunfan didn't take the male demon's surveillance seriously. With the demon's cultivation level, it was impossible for it to see what was happening inside the cave, let alone break through the formation and enter.

During these three months, every ten days or so, a group of Han Chi would return to this place and swim outside the cave, wanting to see him, this "alien," but without exception, they were all driven away by the male Han Chi guarding the cave.

However, Li Yunfan also took this opportunity to scan the Frost Demons with his divine sense and found that they were all at the Qi Refining stage, with not even a Foundation Establishment stage. This puzzled him greatly. He didn't believe that the other clan really had no Foundation Establishment cultivators, but he didn't know where those Foundation Establishment Frost Demons had gone.

He didn't know the language of the Hanchi clan, so even if he wanted to get information from other Hanchi, he couldn't. He could only stay in the cave and focus on cultivation.

Two more months passed, and Li Yunfan finally ran out of cultivation pills, leaving only some detoxification and healing pills. His cultivation level also remained at the peak of the mid-stage.

"Without the aid of elixirs, relying solely on self-cultivation, even with the Fire Spirit Body's relatively fast cultivation speed, it would take at least several years to reach the later stages. To recover to one's previous cultivation level, it would probably take more than a decade..."

Li Yunfan thought to himself with frustration, he didn't want to stay in this dark and gloomy underground for more than ten years.

"call……"

With a long breath, Li Yunfan patted his storage bag, and a pure white jade bottle flew out. He opened the bottle, and a strong, fishy stench instantly wafted out.

"It seems I have no choice but to force myself to cultivate using the essence blood of this level-five demon beast..." Li Yunfan muttered to himself with a furrowed brow.

He didn't actually want to use it so soon. Firstly, his Soul Devouring Undying Body was only at the initial stage, and secondly, he didn't have any spiritual medicine that could refine the blood essence of a level 5 demon beast. If he used it for cultivation without refining it, he didn't know what the consequences would be.

However, he has no other way to quickly improve his cultivation level, so he can only take the risk and try!

Having made up his mind, he gritted his teeth, opened his mouth, and poured the foul-smelling, viscous semen into his mouth. The strong, unpleasant smell immediately rushed into his nasal cavity, making his throat feel somewhat out of control, and he was unwilling to open it to let the semen flow down.

After a long while, he swallowed all the essence blood in the bottle and suppressed the urge to vomit. He immediately formed hand seals to activate the Soul Devouring Undying Body Technique and began to refine his body with the essence blood.

Although these essence bloodstains were not refined, he still used normal cultivation methods, rather than those quick-fix secret techniques.

It's not that he doesn't want to, it's that he simply can't!

Because that quick-learning secret technique, although it does not require refining the essence blood of demonic beasts, does require opening a blood pool, collecting a large amount of the essence blood of demonic beasts, and then immersing the whole body in it before one can cultivate.

He only had seven or eight bottles, not even enough to fill the bottom of the blood pool, so he could only cultivate using the normal method.

After the essence blood entered his body, it was quickly burrowed into his flesh and blood through the operation of the Soul Devouring Undying Body. However, with his current physical strength, he was simply unable to support the absorption of the essence blood of a level-five demon beast.

He felt as if his entire body was being pierced by thousands of tiny needles, which was extremely painful!

At the same time, the traces of violent intent contained in the essence blood began to rush towards his mind. His soul was already somewhat damaged, and now, after being impacted by the violent will of the demon beast, he was in excruciating pain!

The combined pain in his body and soul made him want to grind his teeth to dust!

Although he really wanted to shout it out to vent his frustration, he was currently in the territory of the Hanchi Clan, and the other party had some ideas about him, so he naturally couldn't shout it out to let the other party know. If the other party hesitated and made him stop cultivating, wouldn't he just have to wait to die?

And so, Li Yunfan's forehead veins bulged, he gritted his teeth, and didn't utter a single sound.