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

This situation left Li Yunfan both sighing and feeling quite helpless.

On this day, Li Yunfan suddenly opened his eyes, turned his head to look at the sleeping Nv Hanchi, and a look of doubt flashed in his eyes.

His divine sense detected a strange fluctuation in the other person, as if something within the other person was awakening.

The female demon seemed oblivious, a relaxed smile still on her face as she quietly fell asleep.

Upon seeing this, Li Yunfan's eyes flickered a few times, and he then used his divine sense to probe towards the female cold demon.

Just then, the female demon suddenly emitted a chilling aura, and the temperature inside the cave dropped instantly.

The female demon suddenly opened her eyes, her expression one of astonishment and disbelief.

However, she quickly realized what was happening and hurriedly got up and rushed towards the cave entrance, but the array light barrier was still blocking her way, which made her instantly anxious.

"Quickly...open it!"

Seeing the other party's anxious expression, Li Yunfan became even more curious. His thoughts raced through his mind, and he pointed at the formation. The light barrier at the cave entrance immediately opened, and the female Hanchi rushed out.

Li Yunfan narrowed his eyes slightly, then jumped off the rock and followed the other person out of the cave.

During this time, his divine sense remained locked on the female cold demon, and he discovered that the icy aura surging from her body was growing stronger and stronger, causing the scales on her body to gradually freeze!

The female Hanchi ran all the way into the large cave and jumped directly into the cold pool in the center. Li Yunfan's divine sense also followed her into the cold pool.

The female frost demon swam dozens of feet into the frost pool before finally stopping. She crossed her arms over her chest, closed her eyes, and her body shimmered with spiritual light as she expelled the frost from her body.

When the pool water came into contact with the cold air, it did not freeze into ice. Instead, it seemed to absorb the cold air and integrate it into the pool water.

However, the female cold demon's condition did not improve. The icy aura around her seemed endless. No matter how much she released it, it did not diminish. Instead, it made the ice crystals on her body thicker and thicker.

Seeing the growing chill within her body, the female cold demon opened her eyes wide in terror and let out a strange cry.

"grumble!"

The sound quickly traveled through the pool water and echoed throughout the cave.

Li Yunfan didn't understand what the cry meant, but he could guess that the other party was probably calling for help.

Through his divine sense, he could clearly see the other party's current condition. The cold aura was constantly emanating from his body, and ice crystals were constantly condensing on his body. If this continued, the other party would probably be frozen into an ice sculpture soon!

His eyes flickered twice, and then he suddenly jumped into the pool with a "plop" and swam quickly toward the female demon.

Just as he jumped into the water, a blue light flew in from outside the cave. When the light faded, the figure of the Core Formation stage female demon, Han Chi, was revealed.

At this moment, she looked at the pool water with a face full of surprise and doubt, not understanding why her daughter's cold energy suddenly went out of control, even though it was clearly not the time for the cold energy to erupt.

He probed the water with his divine sense and found Li Yunfan swimming towards his daughter. A cold killing intent flashed in his eyes.

It wasn't that she didn't want to go and help her daughter herself, but the cold energy in the other person's body was very special. If she approached rashly, that cold energy would invade her body, causing her own cold energy to go out of control. In that case, not only would she not be able to save the other person, but she would also be in danger.

Li Yunfan knew more than just these things. The reason he jumped into the water was because he owed the other party a life-saving grace. Regardless of what the other party thought of him, he was saved by the other party after all. If he just watched it happen, his mind would definitely be left with a flaw.

Moreover, if he could save the female demon, even if her mother really wanted to harm him, she would at least hesitate a bit because of the life-saving grace.

Just as Li Yunfan swam to the side of the female cold demon, the spiritual fire within his body suddenly began to stir. At the same time, his blood and qi surged, and streams of red spiritual energy emerged from his bones, rushing into his flesh and blood, causing his entire body to involuntarily heat up, and his skin to gradually be covered with a layer of red light.

Li Yunfan's expression changed. In his shock, he could no longer care about the situation of the female demon and hurriedly circulated his cultivation technique to suppress this change.

But the more he suppressed it, the more violently his blood and qi surged within him. The Yellow Spring Poison Fire and Purple Nether Heart Fire in his dantian also spread uncontrollably throughout his body, like spiritual fire tempering his body, and began to burn every inch of his flesh and blood.

His pores opened wide, and streams of viscous black liquid flowed out of his body. This was the impurity left in his flesh and blood after he absorbed the essence of the demon beast.

At this moment, a strange scene formed in the pool.

Li Yunfan's entire body was flushed red, radiating terrifying heat that caused the icy water in the pool to bubble.

Beside him, the female Han Chi exuded an icy aura, freezing herself into a lifelike ice sculpture.

At this moment, Li Yunfan was in great pain. His body was being burned by two kinds of spiritual fire, and the red spiritual power that had emerged from his bones was penetrating his flesh and blood, causing his blood and qi to surge uncontrollably.

Suddenly, Li Yunfan caught a glimpse of the female Han Chi frozen solid by the corner of his eye, and a strange thought arose in his mind for some reason.

Without time to think, he turned around and swam towards the female cold demon, grabbing the ice sculpture and letting the cold energy within it invade his body.

In an instant, Li Yunfan felt as if he had jumped from a furnace into ice water. This alternating sensation of hot and cold made him feel as if he were stuck between heaven and hell.

What surprised him even more was that the icy energy did not cause any disturbance to the spiritual fire after entering his body. Instead, the two coexisted harmoniously, creating an extremely peaceful state within his body.

Meanwhile, the ice crystals on the female demon's body were slowly melted by the scorching heat from Li Yunfan's body.

Just like Li Yunfan, her body was invaded by fiery spiritual energy, which gradually merged with the icy cold energy, suppressing the burst of cold energy.

Standing by the cold pool, the Core Formation female demon Han Chi was stunned when she saw this situation with her divine sense. Clearly, she did not know that such a thing would happen.

The human and the demon embraced each other, harmonizing their internal energies and stabilizing their condition.

With Li Yunfan's Foundation Establishment stage cultivation, he could go without breathing for several hours without any problem.

Sure enough, three hours later, Li Yunfan suddenly felt a tightness in his chest, so he opened his eyes and tried to swim outwards.

But the female demon was already tightly embracing him, and her long snake tail completely wrapped around his legs, making him unable to move at all.

Li Yunfan was startled and hurriedly tried to break free. After all, he was not Han Chi, who could breathe underwater. If he didn't get out soon, he would become the first Foundation Establishment cultivator to drown!

However, the female demon wrapped around him seemed unwilling to let go. The more he struggled, the tighter she held on, and her snake tail began to contract tightly, causing him pain in his lower limbs.