Du Gang was a little regretful, and he had just cultivated the 28th law. Once he left here, it would be difficult for him to find such a place.

"Wait, I remember, the Holy Crystal seems to be able to enhance a little spiritual power..."

When he absorbed tens of thousands of holy crystals, he felt the increase in his spiritual power.

“Try it!”

Thinking of this, he took out a holy crystal without any hesitation and swallowed it.

At this moment, the energy in his body had already been filled and could not absorb energy for the time being, so all the huge energy in the holy crystal poured into his body world.

As before, a holy crystal has only increased its length by one meter.

"There's a chance!"

Although it was only a little bit, Du Gang still felt some relief from mental fatigue.

"Done!"

Holy crystal is indeed very valuable, and it is not cost-effective to use it to expand the internal world, but for Du Gang, this is the basis for him to enhance his strength.

"What's the use of keeping it? I'm going to fight for it all day!"

"Seize the day!"

Thinking of this, he did not hesitate anymore, and kept taking out the holy crystals in the world inside his body and swallowing them.

After swallowing about a thousand pieces, he felt that his spirit had almost recovered. Zun quickly began to practice the 28th law again.

"boom!"

Half a day later, the 28th law is mysterious!

At this moment, his mental fatigue appeared again, and the repulsion also came as promised.

"continue!"

Du Gang gritted his teeth and began to swallow the Holy Crystal again.

This time, after swallowing nearly two thousand holy crystals, he felt that he could almost last until the end of his cultivation.

"boom!"

One day later, the 29th law is mysterious!

"That's it, keep going!"

This time, Du Gang didn't feel sorry for the more than 20,000 holy crystals left by himself, and began to swallow them wildly.

This time, another six days passed, and when Du Gang realized the mystery of the 34th law, the holy crystal was consumed.

"Damn it, there is only one law left to break the record!"

Du Gang was a little annoyed. Although he was not from the Kong family, he had heard of the records of this secret realm before, but at this time, he was one step away from the record.

The inner world, after replenishing these 20,000 holy crystals, has added more than 20 kilometers of side length. Although it is not as much as the promotion, it is still OK.

"What else can I absorb?"

After thinking for a long time, he searched the entire world in his body. Basically, the rest were low-level things, and nothing could be used.

The only thing that belongs to the master level of his realm is only two semi-artifacts.

"The semi-artifact is an attack weapon, what's the use..."

Suddenly, he was stunned.

"Wait, I remember, there are some original laws in the artifact..."

He had previously understood a trace of the origin law of gold from his ancient magic spear.

The power that can maintain these original laws attached to weapons is the use of special spiritual marks by the weapon refiners.

"If I absorb the spiritual power in the semi-divine artifact, can I hold on for a while?"

Du Gang no longer cared about whether this move would destroy the semi-artifact, because for him, the semi-artifact is just a decoration and cannot be used on weekdays.

"Just do it like this!"

He did what he thought of, and he took out his semi-divine artifact and used his spiritual body to seduce the spiritual marks therein.

Soon, a pure spiritual mark slowly emerged.

On it, there are also various very complex runes engraved.

"Once swallowed, this semi-artifact will be destroyed!"

Du Gang advised him again, but in the end, he gritted his teeth and swallowed it in one bite.

Suddenly, a pure spiritual power poured into his spiritual body, and the light emitted on its surface suddenly became more brilliant and purer.

It is obvious that although the main purpose of devouring this spiritual mark is to restore the spirit, it is essentially to strengthen his spiritual body.

Not only that, after the mental energy was swallowed up, the spiritual marks and runes that had nowhere to be placed, which were about to dissipate, suddenly moved and appeared in Du Gang's inner world the next second.

"boom!"

This semi-divine artifact, which was originally a long sword, grew stronger in an instant, and became larger to a length of 100 meters before it was directly inserted into the ground.

"Is this a semi-artifact?"

At this moment, Du Gang realized that the semi-divine artifact was not so easy to destroy. Although he absorbed the spiritual power in it, the essence of the semi-divine artifact was still there, but it was moved to the world inside his body.

"So, if I can have the same spiritual mark in the future, or find the original owner of this semi-artifact, is it possible to restore it?"

Du Gang suddenly woke up and became a little happy.

The semi-artifact was not completely destroyed, which was good news for him.

"Cultivate!"

Du Gang quickly began to practice the 35th law.

This time, he did not pause at all in the middle, and it was not until a day later that he had successfully practiced the mystery of this law, and the familiar repulsive force appeared again.

Feeling this power, Du Gang took out a semi-divine weapon again and said with a smile: "I'm going to break the record of their empty family!"

He actually does not reject the display of his talents, because it represents his value. Only by fully demonstrating his talents can he obtain more resources from the empty family.

After all, if he hadn't told Kōluo about the mystery of his nine heavens to understand a law, he might have gone back to rematch.

One day later.

"boom!"

With a dull sound, Du Gang successfully realized the mystery of the 36th law.

His cultivation level quietly reached the sixth level of the realm master level, and compared to before entering, he was fully upgraded to the fourth level!

Looking at the sword and sword standing in the world inside, Du Gang started looking for it again.

After plowing the entire world in his body, he was sure that he had nothing to restore his spirit.

"That's 36, just 36, you can be content. Anyway, they will be broken!"

Just as Du Gang was about to go out, Kong Ruo, who was practicing beside him, just opened his eyes.

At this moment, it was just the 40th day since they entered the secret realm. Because Du Gang spent two days understanding a mystery several times, time passed a little longer.

As soon as Kong opened his eyes, he looked at the position where Du Gang was standing before.

Empty!

His eyes suddenly showed disappointment, and he quickly found Du Gangxin's position, and said annoyedly: "You have actually taken the lead again. Next time, I must beat you!"

After saying that, he once again entered the third mysterious cultivation with full of fighting spirit.

"Tsk tsk tsk!"

Looking at this guy full of fighting spirit, Du Gang exclaimed again.

"I am worthy of being a member of the Kong family. I have broken the record of their secret realm. He actually thought of surpassing me so quickly!"

…………

After forty days, Du Gang finally walked out of the secret realm.

He could no longer stay, and the repulsive power of the secret realm had reached a terrifying level.

Of course, for him, the purpose has been achieved, and even exceeded.

The guaranteed goal he set at the beginning was 27 mysteries, and in the end he realized 36, more than one-third.

Before Du Gang could stand firmly, a sigh came over.

"Forty days, thirteen mysteries, the third level of the world master level, alas..."

ps: I haven't slept all night, and this chapter was created. The biological clock was in chaos. Some readers said that the update time was too messy, and the orange cat also discovered it.

Therefore, it is decided to adjust the biological clock and update it regularly.
Chapter completed!