My classmates chose martial arts and fantasy, but I chose the prehistoric world.

"The carrier..."

Meng Chuan pondered for a moment, his gaze falling on Yan Qing, when he suddenly remembered something.

"Speaking of which, before you left the Primordial World, you left the Kongtong Seal with the Human Emperor?"

He had heard Zhen Yuanzi mention this matter briefly when he was in the prehistoric era.

Yan Qing paused slightly, then nodded: "Yes, Master. The Kongtong Seal is a supreme treasure of humanity. Leaving it in the human race can stabilize the human race's fortune. At the time, I thought that the dangers after leaving the prehistoric world were unknown, so I might as well leave the Kongtong Seal in the prehistoric world, which can be considered as doing my part for the human race."

Meng Chuan nodded slightly, without saying anything more.

In other words, besides a few innate spiritual treasures, the only thing Yan Qing truly possesses that can be considered a supreme treasure is the one he gifted him.

A section of tree branch, about the length of an arm, was entirely emerald green, shimmering with a soft green light and exuding a rich sense of life.

That was one of the thirty innate treasures he obtained after killing thirty representatives of the Great Emperors when he returned to the Hongmeng Universe to seek revenge after proving his Dao in the Primordial Era.

In the Hongmeng Universe, it is called the "Great Dao Emperor Weapon".

Some time ago, Yan Qing had already temporarily refined it into his natal treasure.

but……

That wooden treasure, though excellent, is not suitable as a vessel for opening up the inner world.

To open up the inner world, one needs a treasure that can support the fusion of laws and contain the embryonic form of a world.

Wood-type treasures are geared towards life and vitality, and are suitable for nourishing the world, but they fall short as the foundation for creating a world.

"It seems we need to find a suitable vessel for you."

Meng Chuan frowned.

The vessel that opens up the inner world is not something you can find anywhere.

He was able to use the fragment of the Chaos Pearl because that half of the Chaos Pearl itself contained the essence of the chaotic world.

Ordinary innate treasures may not be able to meet the requirements for opening up the world.

Just then, Tapa suddenly spoke up.

"Fellow Daoist Meng Chuan, speaking of the vessel..."

It hesitated for a moment, then reached into the void and took out an object.

It was a palm-sized gray ring, with faint spatial fluctuations flowing throughout, as if it were about to disappear into the depths of the void at any moment.

"Fellow Daoist Yan Qing, I happen to have some extra spatial treasures on hand, which should be able to serve as the carrier for you to open up your inner world after you have integrated the four laws."

Upon hearing this, Meng Chuan and Yan Qing both looked at Tapa.

The air fell silent for a moment.

"Fellow Daoist Tapa, what did you say?"

Yan Qing could hardly believe her ears.

A spatial treasure?

Or is it the kind that can be used to open up the inner world?

Seeing that the two were staring at him, Tapa quickly explained, "Please don't misunderstand, I didn't mean anything by it. After I came to the Divine Realm, I went through dozens of life-or-death battles on that isolated island and managed to obtain two spatial treasures—"

As it spoke, it took out another treasure from the void.

It was a short, silver-white blade, as thin as a cicada's wing, with fine spatial patterns flowing along its surface. The energy it emitted was even stronger than that of the gray ring from before.

"I will keep one of these two spatial treasures for myself, and give the other to Fellow Daoist Yan Qing."

Tapa held the two treasures in his hands and handed them to Yan Qing.

"Fellow Daoist Yan Qing, you can choose one of them. The remaining one is for me."

Yan Qing stood there, stunned, unsure of what to say.

Meng Chuan also narrowed his eyes slightly, examining the two spatial treasures in Tapa's hands.

Both of these treasures are of good quality. Although they are not the most outstanding innate treasures, they are certainly sufficient as carriers for opening up the inner world.

"Fellow Daoist Tapa, what you're doing..."

Yan Qing opened her mouth, somewhat at a loss for words.

Although she and Tapa traveled together, in the end, they only came together because of their teacher relationship.

The other party presented a spatial treasure right off the bat; this gift was far too generous.

"Fellow Daoist Yan Qing, there's no need to decline."

Tapa's tone was sincere, "We've traveled together for thousands of years, and we can be considered sworn brothers. Moreover, Fellow Daoist Meng Chuan's strength has greatly increased after opening his inner world, which is also a good thing for our team. If you can fuse with the perfect spatial laws as soon as possible and open your inner world, our overall strength will be even stronger."

Yan Qing looked at Meng Chuan with a questioning look in her eyes.

Meng Chuan pondered for a moment, then nodded slightly: "Since Fellow Daoist Tapa is so kind, you may accept it."

"Thank you, Fellow Daoist Tapa!"

Yan Qing then solemnly accepted the two spatial treasures, carefully sensed them, and finally chose the gray ring.

The spatial laws of that ring were purer and more compatible with the spatial laws she was merging with.

"Then I'll choose this one."

Yan Qing held the gray ring, feeling the spatial power contained within it, a look of joy flashing in her eyes.

Tapa sheathed the silver dagger and smiled.

Yan Qing suddenly looked at Tapa and asked, "Fellow Daoist Tapa, you have already fused four perfect laws, and the fifth spatial law is also perfected. Although you haven't fused it yet, you should be able to try to open up your inner world, right?"

She paused, then asked, "Why hasn't it been opened yet?"

Tapa's smile froze upon hearing this.

It gave a wry smile and sighed, "To be honest, for the past eight hundred years, I have been trying to open up my inner world, but I have found it extremely difficult..."

It looked up at Meng Chuan, its eyes filled with complex emotions, "Fellow Daoist Meng Chuan, I was truly shocked that you opened up your inner world so quickly."

Meng Chuan raised an eyebrow: "Oh?"

"I tried countless times, and each time it ended in failure."

Tapa shook his head. "I've already met the conditions for opening up my inner world—the four perfect laws and a suitable vessel. But every time I try to open it up, it collapses halfway through and I can't stabilize it at all."

It looked at Meng Chuan, its eyes revealing a strong thirst for knowledge, "Fellow Daoist Meng Chuan, how exactly did you do that?"

Meng Chuan remained silent for a moment before slowly speaking: "There are two main reasons why I was able to open up my inner world so quickly."

Tapa immediately perked up his ears and listened attentively.

"First, the Law of Power among the four perfect laws I have integrated."

Meng Chuan extended his finger, and a wisp of golden Law of Power flowed around his fingertip. "The Law of Power is the source of all laws and the foundation of all power. It can harmonize the conflicts between different laws, acting as a 'lubricant.' With the harmonization of the Law of Power, the difficulty of fusing multiple laws will be greatly reduced, and the same applies when opening up the inner world."

Tapa nodded thoughtfully.

"Secondly, the fourth perfect law I have integrated is the law of space."

Meng Chuan continued, "The laws of space are one of the core laws for opening up the inner world. The inner world is essentially an independent space. With the assistance of the laws of space, the difficulty of opening up the world will naturally be reduced a lot."

He looked at Tapa, his tone calm yet resolute: "The Law of Force combined with the Law of Space, with the two working together, will naturally make my opening of the inner world twice as effective."

After listening, Tapa fell into deep thought.

After a long silence, it gave a wry smile: "I see..."

It incorporates four perfect laws: the law of death, the law of fate, and two ordinary elemental laws.

There is neither the law of force that can reconcile conflicting laws, nor the law of space necessary for opening up the world.

No wonder it tried countless times, all of which ended in failure.

"It seems that I can only integrate the laws of space first, and then try to open up my inner world."

Tapa sighed and gripped the silver dagger in his hand.

Meng Chuan nodded and didn't say anything more.

But he knew in his heart that there was another reason he hadn't said—

His fragment of the Chaos Pearl, though only half a Chaos Pearl, should be known that the Chaos Pearl was once a treasure containing a complete chaotic world.

Even if only half a fruit remains, it still has an excellent foundation.

This is the fundamental reason why he was able to open up his inner world so quickly.

However, he didn't need to tell Tapa this reason.