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

As the tightness in his chest grew increasingly severe, Li Yunfan's expression changed. He disregarded whether he would harm the female Hanchi, and with a surge of spiritual energy, he pushed her away from his upper body.

Then, with a pat on his storage pouch, a crimson longsword flew out. Li Yunfan grabbed the hilt, and with his other hand, he embraced the unconscious female Han Chi, using the power of the magical artifact to carry himself out of the icy pool.

As soon as they landed, the Core Formation female demon swam over quickly. After observing her daughter's condition, she finally breathed a sigh of relief.

"What just happened? Why did Bing'er suddenly lose control of her cold energy?" The female demon stared at Li Yunfan with her vertical pupils and asked in a cold tone.

"Senior, I don't know the specifics either. At that time..." Li Yunfan gave a wry smile and explained with a sense of helplessness.

He was indeed wronged; he only wanted to save the other person, who knew this would happen!

Upon hearing Li Yunfan's words, a hint of surprise flashed in Nv Hanchi's eyes. She realized that she had misunderstood him, and her expression softened.

But when they heard that the cold and heat in the two bodies were mingling and harmonizing with each other, they were first stunned, and then their expressions suddenly changed, because the situation described by Li Yunfan was very similar to the secret left by their ancestors.

"Senior, could you please separate us first?" Li Yunfan said with a wry smile when he saw the other party suddenly start to think.

Upon hearing this, the female demon glanced at her daughter, who was still clinging to him despite being unconscious, and a strange look appeared in her eyes before she spoke to Li Yunfan.

"She's already clinging to you. Forcing her apart will only hurt Bing'er. Just stay here for now, and she'll let you go once she wakes up!"

After a pause, he spoke again.

"I see that your injuries have almost healed. After Bing'er wakes up, come find me with her. It's time to help me retrieve the treasure." After saying that, he was surrounded by blue light and turned into a beam of light, leaving the place.

Seeing this, Li Yunfan was speechless. It seemed that they had simply handed their daughter over to him.

Just then, a series of "gurgling" sounds suddenly came from behind him. He turned around and saw dozens of male and female demons looking at him and exchanging words.

Since he couldn't understand anyway, he simply pretended not to hear it, controlled the Crimson Fire Sword with his divine sense to fall, lightly jumped onto it, and flew with the female Han Chi towards the cave where he lived.

Back in the cave, Li Yunfan was in trouble again. The long tail of the female Hanchi in his arms had wrapped around him from his legs to his waist, making it impossible for him to sit cross-legged.

But standing there wasn't going to work, so he made a snap decision, jumped onto the rock, placed the female demon beside him, and then lay down.

Although a snake tail was wrapped around his legs, he was somewhat surprised to find that the scaled tail was quite soft and comfortable to press against.

So Li Yunfan lay on the rocks and gradually fell into a deep sleep.

After an unknown amount of time, Li Yunfan suddenly felt as if a heavy object was pressing down on him. His eyelids twitched slightly, and then he opened his eyes.

When Li Yunfan saw the smiling female demon lying on his chest, he was first startled, and then he came to his senses.

"Shouldn't you go down now?" Li Yunfan said calmly.

The female demon blinked, then reluctantly got up from Li Yunfan and sat down beside him.

Seeing the other party's expression, Li Yunfan felt somewhat helpless, and at the same time, he roughly guessed why the other party liked the spiritual fire in his body.

"Let's go, your mother has been waiting for quite a while, it's time to go and get her things!" Li Yunfan jumped off the rock, then cast a cleansing spell before speaking calmly.

"You...don't like...me?" The female demon looked at Li Yunfan and suddenly asked this question.

Li Yunfan showed a hint of surprise, then shook his head with a strange expression and said, "You saved my life, I'm very grateful, but that's all!"

The female cold demon lowered her head in frustration. She didn't actually want Li Yunfan to leave, because staying by his side made her feel very comfortable and helped her harmonize the cold energy in her body, which was very beneficial.

"Alright!" the female demon said somewhat dejectedly, then got off the rock and swam her long tail to lead Li Yunfan to her mother.

The two soon arrived at the cave where her mother lived. Nü Hanchi raised her hand to beckon her daughter over, affectionately touching foreheads with her before looking at Li Yunfan and speaking.

"Hmm, I didn't expect your true cultivation level to be at the late Foundation Establishment stage. This greatly increases the chances of you retrieving that treasure for me!"

"Senior, I'm about to help you retrieve the treasure. Now you should be able to tell me where to go and what treasure to retrieve, right?" Li Yunfan asked, cupping his hands in greeting.

"That's exactly what I was thinking!" The female demon nodded, and then told Li Yunfan the specific location and the treasure.

It turns out that what the female demon wanted Li Yunfan to retrieve was a treasure left behind by their ancestor.

This treasure was placed inside the grotto-heaven magic treasure, but due to the blood soul restriction set up by the ancestors, the bloodline of the Hanchi clan could not get close, so it was necessary to borrow Li Yunfan's hand to take it out.

Li Yunfan frowned, a thoughtful expression on his face, but in reality, he was already shocked by the other party's words.

"A magical treasure from a hidden cave! They actually have another magical treasure from a hidden cave!"

If it were any other Foundation Establishment or Core Formation cultivator who came here, they might not know what the Cave Heaven Treasure was, but Li Yunfan clearly knew its value and preciousness.

A grotto-heaven treasure, as the name suggests, is a treasure containing a grotto-heaven. The grotto-heaven is a small world of its own, which can absorb people and monsters. As long as there is enough spiritual energy, people inside can live indefinitely.

Li Yunfan never expected that there would be such a treasure in the human realm. A magical artifact containing a cave heaven is extremely rare even in the spirit realm!

"Wait a minute! How can the mortal realm refine a magical treasure containing the laws of space? Only the spirit realm and the immortal realm can refine such things... Could it be that this Cold Demon clan is not from this realm?"

Thinking of this, he couldn't help but recall that there was no information about them recorded in the ancient books. If they were really from this world, even if they entered the underground tens of thousands of years ago, would the ancient cultivations not have any records of them before that time?

This is unlikely. Even if too much time has passed and some books have been destroyed or lost, some clues will eventually be left behind. It is impossible for nothing to be found at all.

But if it came from another interface, that's easier to explain.

Li Yunfan nodded to himself, becoming even more certain of his guess.

However, now is not the time to find out the truth, so he put on a normal expression and said to the female Hanchi clan chief.

"Alright, I hope you'll keep your word and let me leave once I've obtained the treasure you need!"