Chen Xiao sat on the bed, eyes tightly closed, hands forming a hand seal, and began to activate the Shishen Jue (God-Slaying Technique). The spiritual energy around Zheng Yi Pavilion surged toward his body at a terrifying speed.

After the spiritual energy entered his body, the spirit seed began to operate frantically, absorbing the energy and transforming it into strands of yuan qi (primeval energy), which flowed from the dantian (elixir field) through the body's eight extraordinary meridians, permeating the bones and muscles, ultimately strengthening the physical body, making it indestructible. This process was known as body refinement.

Chen Xiao could feel that cultivating the Shishen Jue allowed him to utilize yuan qi to temper his body more effectively. Both his strength and physical resilience would greatly improve, far surpassing others in the same realm.

The first three levels of body refinement were the Lian Li Qi (Strength Training Stage). Martial artists in this stage experienced rapid cultivation progress. However, Chen Xiao knew that these three levels should not be taken lightly. A tall building rises from the ground; the body refinement stage was laying the foundation for future cultivation, its importance self-evident, and the first three levels were especially crucial.

Now, Chen Xiao was actually grateful for his predecessor's trash physique. This first level body refinement body was like a blank sheet of paper, allowing Chen Xiao to start from scratch and build a solid foundation.

Activating the Shishen Jue consumed a great deal of yuan qi from the dantian. The yuan qi released by the spirit seed was used to temper the body, completely insufficient to meet the demand. Before long, Chen Xiao's dantian ran out of yuan qi. If he stored yuan qi within the dantian, it would inevitably affect his cultivation speed.

At this time, the support of medicinal pills was needed. Chen Xiao swallowed a Zhuyuan Dan (Foundation Building Pill), and the yuan qi in his dantian began to slowly recover.

This was the importance of medicinal pills for cultivation, and why the disciples of large families cultivated much faster than children from ordinary families.

Time passed by, and Chen Xiao had just swallowed his third Zhuyuan Dan. Waves of energy surged around him, and the temperature in the air suddenly rose.

At this moment, Chen Xiao's muscles bulged and knotted, his small face flushed, and fine beads of sweat appeared on his forehead. Then he felt a warm current flow through his body. He was too familiar with this feeling – he had broken through and entered the second level of body refinement!

After breaking through, Chen Xiao did not stop to rest, but continued to activate the yuan qi in his body and cultivated frantically.

This was Chen Xiao. Once he started cultivating, he became like a madman. This was also the reason why he was able to enter the Tong Xuan Jing (Mystic Passage Realm) at the young age of forty in his previous life.

However, this was also thanks to Chen Xiao's supreme-grade spirit seed. If someone else cultivated at his speed, not to mention mental fatigue, the spirit seed would have malfunctioned long ago under such frantic operation. Spirit seeds were very fragile in the early stages.

It had to be said that a supreme-grade spirit seed was indeed a supreme-grade spirit seed. Under such frantic operation, Chen Xiao did not feel any discomfort at all. It was too awesome!

Later, the recovery speed of one Zhuyuan Dan was no longer enough to support Chen Xiao's cultivation, so he had to swallow two at a time. After using up the remaining seven Zhuyuan Dans, Chen Xiao finally stopped.

Chen Xiao opened his eyes, but a hint of doubt flashed in them. He had used up ten Zhuyuan Dans, but had not broken through again. He had only barely reached the late stage of the second level of body refinement, still one step away from the third level.

One had to know that if an ordinary person used these ten Zhuyuan Dans, they would have been enough to reach the fourth level of body refinement. Chen Xiao had not even reached the third level.

"Could it be that cultivating the Shishen Jue actually slows down the cultivation speed?" Chen Xiao muttered in puzzlement.

Feeling the power in his body, Chen Xiao understood somewhat. Although he was only at the second level of body refinement, Chen Xiao felt that his physical strength was as much as three thousand jin, completely comparable to a fourth level body refinement martial artist.

Moreover, with the breakthrough, the amount of yuan qi he could store in his dantian had increased again, more than that of a fourth level body refinement martial artist. One had to know that in a battle between two people of equal strength, it was difficult to determine the winner in a short period of time. At this time, whoever had more yuan qi would definitely have a greater chance of winning.

"A body comparable to the fourth level of body refinement, coupled with my combat experience, is enough to sweep away all martial artists at the fourth level, and I even have a chance against martial artists at the fifth level," Chen Xiao said with excitement.

No wonder. Generally speaking, the difference in level had a huge impact on strength, and as the level increased, the impact would become greater and greater.

Although Chen Xiao could challenge martial artists at the second and third levels of body refinement when he was at the first level, the difference between the second level and the fifth level was a completely different concept.

The body refinement stage was divided into nine levels. The first three levels trained strength, the middle three levels forged bones, and the last three levels refined internal organs. The difference between the third and fifth levels of body refinement was not only two levels, but a difference of two minor realms.

So, Chen Xiao was able to contend with fifth level body refinement martial artists when he was at the second level. How could he not be excited?

At this moment, Chen Xiao discovered that the Shishen Zhi Shu (God-Slaying Book) within his dantian was reacting again, flickering on and off.

With the experience from last time, Chen Xiao decisively used his divine sense to touch the Shishen Zhi Shu. As expected, under Chen Xiao's anticipation, the second page of the Shishen Zhi Shu slowly unfolded. This page recorded the "Liuhe Quan (Six Harmonies Fist)," which sounded like a martial skill.

"It must be because of the breakthrough just now!" A hint of surprise flashed in Chen Xiao's eyes. As he expected, as his cultivation level increased, the inheritance revealed by the Shishen Zhi Shu would also increase.

However, after the content of the Liuhe Quan poured into Chen Xiao's mind, Chen Xiao was dumbfounded: "Huang-grade martial skill? Are you kidding me?"

Liuhe Quan, a Huang-grade martial skill, contains six fist techniques. It is a set of powerful and vigorous fist techniques.

"Really only six fists, you really live up to your name!" Chen Xiao was very helpless. He really couldn't figure out how the dignified Wuzhe Shengzhe (Sage of Comprehension) would use a mere Huang-grade martial skill as his inheritance. This was too unbelievable.

"Forget it, no matter what, it's part of the Shishen Zhi Shu. Let's practice it first." Chen Xiao put away the contempt in his heart and began to practice according to the information in his mind.

The indoor space was small and not suitable for practicing martial skills, because some martial skills, when used, had great power and could cause unnecessary damage.

However, the Liuhe Quan was only a Huang-grade martial skill, so there was no need to worry about this. A Huang-grade martial skill was a Huang-grade martial skill. Even if it was the inheritance of the Wuzhe Shengzhe, its power would not be too high.

Chen Xiao activated the yuan qi in his body, circulating it according to the routes on the martial skill. Finally, the yuan qi gathered on his fist and was punched out.

Before long, Chen Xiao had basically mastered this set of Liuhe Quan. It was not because Huang-grade martial skills were simple that anyone could learn them so quickly.

It was just that Chen Xiao was extremely intelligent, had extremely strong comprehension ability, and had the cultivation experience of his previous life. Naturally, it was not a problem for him to learn a Huang-grade martial skill in a short period of time.