After fighting for a while, the fire wolf wanted to retreat. This kid was too difficult to deal with. Every time he made a move, the fire wolf had to be extremely cautious to avoid it.

Chen Xuan had already decided to use the fire wolf as a training partner. At the sixth stage of his cultivation, he no longer felt pressured, and facing a seventh stage beast was perfect for honing his skills. As the battle continued, the wounds on the fire wolf's body kept increasing.

With a roar, the fire wolf hastily retreated. It didn't want to fight with this young man anymore. This kid was too abnormal. Every time the fire wolf saw Chen Xuan's blade, its fur stood on end.

"Now you want to leave? It's too late!" Chen Xuan roared.

"Wind Slash!"

A beautiful arc cut through the air, slicing the fire wolf's neck. A thin thread of blood spurted out, and the fire wolf unwillingly collapsed to the ground.

The fire wolf stared fiercely at Chen Xuan. It couldn't believe that such a seemingly weak young man had such exquisite swordsmanship. Finally, with resentment, it closed its eyes.

After fighting with the fire wolf, Chen Xuan had a deeper understanding of the Wind Slash. The angle of his strikes became more precise. Now, with each swing, he could attack from twenty different angles. Even if the fire wolf was fast, it couldn't evade twenty lethal attacks.

Chen Xuan also suffered some minor injuries from the battle. His left shoulder was scratched deeply by the fire wolf's claws, leaving visible bone marks.

He took out a hemostatic pill, swallowed it, then sprinkled some healing powder on the wound. Tearing off a piece of cloth from his clothes, he quickly bandaged the wound. The pain made Chen Xuan grit his teeth. Damn, this fire wolf was really fierce.

Approaching the fire wolf's body, Chen Xuan peeled off its fur. The fire wolf's pelt was valuable, worth at least twenty thousand coins. He reached out and extracted the fire wolf's inner core.

"Hoho!"

Chen Xuan shook the fire wolf's inner core in his hand. The inner core of the six-level Giant Strength Ape he killed before was only the size of a ping-pong ball, but the fire wolf's inner core was the size of an egg. A seventh-level monster's inner core could be sold for fifty thousand coins. This time, not only did he hone his sword skills, but he also made a small profit.

Suddenly, Chen Xuan remembered something and quickly communicated with Old Li using his divine sense.

"Old Li, can the Swallowing Heaven Technique absorb the spiritual energy of beasts?" Chen Xuan asked.

"I haven't practiced this technique myself, so I can't give you any advice. You better try it yourself to find out!" Old Li replied.

Whether it was a human or a beast, the spiritual energy on their bodies would gradually dissipate after death. Swallowing Heaven Technique mentioned absorbing others' spiritual energy, but it didn't specify that it couldn't absorb the spiritual energy of beasts.

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Cross-legged, Chen Xuan sat down and activated the Swallowing Heaven Technique. A vortex of energy appeared above his head.

"Absorb!"

The fading spiritual energy of the fire wolf was gradually sucked into the vortex above Chen Xuan's head and flowed into his body through his meridians, heading towards his dantian.

"Refine!"

The vortex disappeared, and the absorbed energy returned to Chen Xuan's body. He opened his eyes, a smile on his face. It worked well. Although not much, he had absorbed thirty percent of the fire wolf's spiritual energy.

Standing up, Chen Xuan grabbed his steel sword and quickly left the area. After a fierce battle, more beasts would arrive soon. Also, he felt like he was about to break through immediately after absorbing the fire wolf's spiritual energy. So, he needed to find a safe place to break through.

Running towards the left, Chen Xuan crossed through dense forests until he reached a small valley. On the rear side of the valley, there was a cliff about two hundred feet high with a cave entrance big enough for one person.

Arriving at the cliff's edge, the two hundred feet high cliff no longer posed a threat to Chen Xuan.

At the entrance of the cave, it was damp inside. Chen Xuan found a clean spot and sat down.

Activating the Swallowing Heaven Technique, Chen Xuan's true energy circulated repeatedly in his body. With each circulation, his true energy deepened.

When he reached the thirty-sixth cycle, the true energy in Chen Xuan's dantian had slowly transformed from liquid to viscous. The Swallowing Heaven Technique continued to operate.

With a loud bang in his ears, the true energy, like the vast ocean, returned to his dantian.

Chen Xuan stood up, and his bones emitted a crackling sound.

Activating his true energy, he punched the wall with a Thunderous Fist. With a bang, the stones on the cave wall fell down.

So powerful! It was twice as strong as the fifth stage of the Postnatal Realm. If he encountered the fire wolf again, he could easily deal with it with just one slash.

"Since the spiritual energy of beasts can be absorbed, can the spiritual energy contained in their inner cores be absorbed?" Chen Xuan asked himself.

The inner core was the essence of a beast. If he could absorb the energy from the inner core, Chen Xuan dared not imagine what state he would reach. But Chen Xuan was not one to hesitate. As soon as he thought of it, he acted on it.

He sat cross-legged again, holding the fire wolf's inner core in his hand. Activating the Swallowing Heaven Technique, he saw threads of spiritual energy flowing from his hand into his body, following his meridians and flowing into his dantian.

After half an hour, with no more spiritual energy input, Chen Xuan opened his eyes and saw that the green inner core had turned into a gray-white color. He was so excited that he almost jumped up. He quickly communicated with Old Li using his divine sense.

"Old Li, did you see that? I actually absorbed the spiritual energy from the beast's inner core. My true energy has increased by another thirty percent since breaking through to the sixth stage!" Chen Xuan exclaimed.

"You're damn lucky, kid. I didn't expect the Swallowing Heaven Technique to be so overbearing. Others work hard to cultivate, but you can just swallow their energy to progress quickly. If people knew you were practicing such a domineering technique, they'd chase you around the world every day. To obtain something precious without knowing its value is also a crime. I wonder how extraordinary the person who created this technique was!" Old Li's voice echoed in Chen Xuan's mind, full of admiration.

"Old Li, you haven't told me yet what level my sword technique is!" Chen Xuan asked.

"I don't know. This is something I created myself, so I'm not sure about its level. But it should be at least of the Earth Grade Superior rank!" Old Li replied.

The best techniques in his family were only at the Yellow Grade Superior level. Thinking about whether it was martial arts or techniques, any one of them could cause a sensation. But he couldn't reveal them yet. When he had the strength, he would bring back some high-level techniques for his family.

Chen Xuan took out all the inner cores from his body and let the Swallowing Heaven Technique absorb them. The inner cores of fifth-level monsters could only increase his true energy by ten percent, and those of fourth-level monsters by five percent. He put away the inner cores below fifth level. They didn't help him much, so he might as well sell them to the Rejuvenation Pavilion. He could make a good profit and exchange for some elixirs and spirit stones for his cultivation.

Chen Xuan stayed in the cave for two days before deciding to leave. He had thoroughly consolidated his sixth-stage realm, and he felt that reaching the seventh stage was not far off. He must now find a way to improve his swordsmanship further and find some eighth-level beasts to continue practicing the Wind Slash.

"What should I do next?" Chen Xuan quickly communicated with Old Li using his divine sense.

"Your true energy now is almost equivalent to the eighth stage of the Postnatal Realm. Seventh-stage beasts pose no threat to you. You don't need to deliberately kill those low-level beasts anymore. Instead, go deeper and find some eighth-level beasts to hone your Wind Slash. Your speed and angle of attack still need improvement!" Old Li advised.

"When you reach the seventh stage, I will teach you a set of footwork. With the combination of footwork and swordsmanship, your martial skills will reach a higher level!"

Chen Xuan took a deep breath and headed deeper into the mountains.