After discussing it, Guo Feng asked Sima Han to find him a quiet place to go into seclusion.

"First, refine the Heavenly Demon Tomb to thoroughly familiarize yourself with this supreme treasure. Then, improve your supernatural abilities and cultivation techniques. Finally, draw a prize to advance your realm."

Upon arriving at the quiet room, Guo Feng immediately made a decision.

After setting up the formation, they took out the Heavenly Demon Tomb, entered it, and began further refinement.

Previously, it was only a preliminary refinement, but now it has gone a step further, making it easier to use and more familiar with the various formations of the magic weapon.

In reality, many people obtain magical artifacts and spend decades or even centuries familiarizing themselves with them; the longer they use them, the stronger their power becomes.

While refining the weapon, he also familiarized himself with the techniques of weapon crafting, occasionally capturing some Heavenly Demons to decompose and comprehend the profound mysteries of the Great Heavenly Demon Path.

Time passed little by little.

Five days passed in the blink of an eye, and it was December 30th.

In these five days, he gained a completely new understanding of the Heavenly Demon Tomb and learned many new functions.

It can be said that if he were to fight Zhao Xuantian again, he could kill Zhao Xuantian with only half the strength he had before.

That's how powerful the Heavenly Demon Tomb is!

Moreover, as he refines and becomes more familiar with it, the power of the Heavenly Demon Tomb will become even stronger.

"Alright, now let's upgrade the Great Five Elements Dao, the Great Sumeru Dao, and the Great Heavenly Demon Dao as well!"

He then summoned the control panel.

He spent 1.35 billion spirit stones to directly elevate the Great Five Elements Dao to the tenth level, and the name was also transformed into 'Great Five Elements Dao (True)'.

In that instant, an endless stream of information flooded his mind, as if he had experienced a sudden enlightenment, or as if it were a divine gift.

The imperial aura of the Five Elements within the body has also undergone a fundamental change, as if it were a process of quantitative change leading to qualitative change.

He felt that now one wisp of the Great Five Elements Imperial Qi was equivalent to one hundred wisps before.

All the supreme divine powers of the Five Elements Dao, such as the Golden Emperor and White Emperor Slash, were instantly perfected, generating true Five Elements Divine Thunder.

Complete perfection, boundless power!

It seems to have reached a whole new level!

His combat power has improved by more than one level.

"Again!"

Without hesitation, he spent another 2.5 billion spirit stones to upgrade the Great Heavenly Demon Path to the tenth level of perfection, which changed to 'Great Heavenly Demon Path (True)' on the panel.

The same feeling came over me again.

His body was surrounded by the colorful light of the Five Elements and the black demonic energy of the Great Heavenly Demon, making him appear both righteous and evil, seemingly an immortal and also a demon.

He is a complete practitioner of both immortal and demonic cultivation.

His understanding of the Great Heavenly Demon Path has now completely surpassed that of Li Hunyuan.

Dominating and creating celestial demons feels effortless to him.

All the supreme divine powers of the Great Heavenly Demon Path have reached the Great Perfection, resulting in a surge in combat power.

Buzzing...

Moreover, the divine power talisman in his sea of ​​consciousness also experienced an enhancement of its supreme divine power due to the improvement of these two supreme Daos.

The arrays of supernatural power shone brightly, making the supernatural talismans not only several times larger, but also several times more powerful!

and--

Because a total of 3.85 billion spirit stones were consumed, plus the spirit stones consumed previously.

The expenditure exceeded 800 million spirit stones.

His exclusive level directly increased to level 105, and his realm reached the fifth-grade True Immortal.

Asset growth has been achieved.

His immortal power reached 308 immortal power.

Of course, the next upgrade will cost 1.6 billion spirit stones, which is equivalent to spending 160 spirit stones.

"Good, this upgrade has improved the quality of my magical talismans once again!"

"My immortal power hasn't increased much, but my combat strength is now on a completely different level. I can kill Zhao Xuantian, a ninth-rank celestial immortal, within ten moves!"

"That felt great!"

"I need to spend some more money. I currently have 23.8 billion, and upgrading requires 16 billion. I also need to exchange some immortal stones to win people's hearts. Why do I suddenly feel so poor?"

He thought for a moment, and then made a decision.

He immediately spent 16 billion to do 160 consecutive draws, and for a moment, he heard a dense barrage of notification sounds.

After 160 consecutive draws, I obtained 100 Immortal Beans, 40 various Immortal Pills, 15 low-grade Immortal Artifacts, and 5 mid-grade Immortal Artifacts.

In fact, this is a sure-fire way to make money! Anyone who could buy 20 immortal artifacts for 16 billion low-grade spirit stones would be grinning from ear to ear.

Not to mention there are also 40 magic pills and 100 magic beans.

"Nearly two hundred pulls and I still haven't gotten a big one? Oh well, it's not bad."

He glanced at the panel again.

His exclusive level was upgraded once again, reaching level 106, and his realm reached the sixth-grade True Immortal.

Asset growth has been achieved.

In addition, he ate a hundred Senzu Beans in one go, and after digesting them, his Senzu Power directly increased to 831 Senzu Power!

The upgrade cost reached 3.2 billion spirit stones, which means it will cost 32 billion spirit stones.

That's a huge number.

Meanwhile, he still had 7.8 billion spirit stones.

"Forget it, let's just convert them into immortal stones and use them to win people's hearts, a combination of kindness and severity!"

As Guo Feng spoke, he directly converted 7.8 billion spirit stones into 78 low-grade immortal stones.

In an instant, his space was filled with a pile of immortal stones whose immortal energy was so dense that it was almost unbearable.

Even in ancient families, this would be extremely precious.

You must understand that their immortal vein has been in existence for tens of thousands of years without being replenished, and the production of immortal stones has become pitifully low.

These celestial beings are already insufficient.

My dear reader, there's more to this chapter! Please click the next page to continue reading—even more exciting content awaits!