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

Li Yunfan deliberately spoke very slowly.

In his view, the other party could only speak haltingly, and if he spoke too fast, the other party might not hear him clearly and misunderstand him, which would be terrible.

Fortunately, the female demon heard him clearly and understood what he meant.

"So...that's how it is..." The female demon nodded, seemingly without any doubt that Li Yunfan was lying, and then spoke again.

"You can...heal here...but...you need to...do something for us."

The female demon seemed to be gradually becoming familiar with the human language. Although she still stuttered a bit when she spoke, she was already able to say a short passage in complete sentences.

"I wonder what you need me to do, senior?" Li Yunfan frowned, pondered for a moment, and then asked the female demon.

"No rush, focus on healing your injuries first. We can talk about the rest later. This place is deep underground... and no one has disturbed us for tens of thousands of years. You can rest assured and recuperate." The female demon smiled as she saw that Li Yunfan did not refuse.

Upon hearing this, Li Yufan's pupils contracted, and he was shocked.

This female demon said that no one has disturbed this place for tens of thousands of years, which means that she and her group of demons have been living deep underground for tens of thousands of years!

"Could they be monsters that survived from ancient times?" Li Yunfan thought in shock.

Suddenly, as if he had thought of something, he cupped his hands to the female demon and asked.

"This junior is new to your esteemed place and is unfamiliar with it. I also cannot understand the language of your clan. I humbly request that you explain things to me!"

A thoughtful look flashed in the female demon's eyes. After a moment, she nodded and said, "Alright, as long as it doesn't involve the secrets of my race, I can tell you. What do you want to know?"

"Thank you, senior! I would like to know why I am here. Is the cold air passage connected to this place? And was it you who saved my life?" Li Yunfan was overjoyed to hear this, so he asked the first question that he cared about the most.

A glint flashed in the female demon's eyes. She stared at Li Yunfan for a while before explaining to him.

It turns out that the cold air passage is not connected to this place, but it is somewhat connected to the cold pool in the giant cave outside. Because of some abnormalities in their bodies, they have to enter the cold pool every once in a while.

After he fell down from the icy passage, because his whole body was frozen, he fell to the bottom of the icy pool along the connection between the passage and the pool.

It just so happened that the female demon's daughter, who was a smaller female demon beside him, was swimming in the cold pool when she discovered him and brought him back.

Upon hearing that it was the little demoness who had saved him, Li Yunfan turned his eyes to look at her and found that she was also looking at him with curiosity in her eyes.

Seeing this, Li Yunfan smiled slightly at her, and the little demon girl blinked her big, watery eyes, looking quite cute.

"I have answered your question. Now it is your turn to answer mine."

Li Yunfan was taken aback, then nodded and said, "Senior, please ask!"

"Actually, I didn't want to save you, because it might expose our clan, but I sensed the aura of flames on you... Do you have flames on you?" The great banshee asked, a hint of expectation in her eyes, as if she really hoped he had flames on him.

Li Yunfan frowned inwardly, not understanding why the other party cared about the spiritual fire within his body, but after thinking for a moment, he still admitted it.

Firstly, the other party had saved his life; secondly, he was on the other party's territory, and the other party had already sensed something. If he didn't admit it, the other party might inevitably have other ideas.

Moreover, Li Yunfan felt that the reason the other party asked this question was very likely related to what the other party wanted him to do.

"Indeed, I have refined spiritual fire within my body!"

After saying that, he raised his right hand and with a "bang," the Yellow Spring Poison Fire appeared in his hand, illuminating the cave brightly.

Upon seeing the yellow flame in Li Yunfan's hand, the great female demon's face immediately lit up with joy, while the little female demon revealed a hint of enjoyment, even narrowing her eyes slightly.

Seeing the other party's expression, Li Yunfan withdrew the flames and asked again what the other party wanted him to do.

The great succubus's joy vanished, and after a moment's hesitation, she sighed and said...

"Alright, since you're so eager to know, I might as well tell you now. I need you to go into a place and retrieve something for me."

Li Yunfan narrowed his eyes, just about to ask some more specific questions, when the female demon raised her hand and said.

"I will tell you the details after you have recovered from your injuries. Don't worry, this matter is not dangerous for you. As long as you successfully complete this task for me, I will send you back to the ground."

He paused for a moment, then spoke again.

"If you have no other problems, you should go back and recover."

Li Yunfan's eyes flickered slightly, but he did not leave immediately. Instead, he cupped his hands and asked again, "Senior, I have one last question, and I hope you can answer it for me."

"Do you want to ask about our clan?" The great female demon stared at Li Yunfan for a while before speaking.

"Indeed! To be honest, senior, I have never seen any record of your clan in any ancient texts. What kind of demon clan are you, senior?"

The great female demon remained silent for a moment before speaking, "Strictly speaking, our Hanchi clan is not actually a demon beast, nor is it your human race. I don't really know the origins of our clan; I only know that we have lived deep underground for generations and have never left to go to the surface."

"The Hanchi Clan..."

Li Yunfan frowned, racking his brains over the books he had read, but he still couldn't recall any information about the Hanchi Clan. He had never even heard the name before.

"Alright, I've told you enough for today. Once you've recovered from your injuries and retrieved what I need, you can leave the underground and return to the surface where your human race lives!"

After the female demon Han Chi finished speaking, she made a "chirping" sound again, calling the male Han Chi outside to come in.

Seeing this, Li Yunfan didn't dare to ask any more questions. He could only bow to the female demon and follow the male Hanchi out of the cave.

Right after Li Yunfan left, a chill suddenly flashed deep in the eyes of the female demon...