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

Meng Xiaoyu cried until she couldn't speak anymore. She just nodded frantically and reached out her hands, as if she could grab her brother and confirm that he had really come back.

Looking at them, Meng Chuan felt a surge of indescribable emotions.

The original owner's memories do not belong to him.

But it also belongs to him.

He took over this body and assumed this cause and effect.

He withdrew his gaze and scanned his surroundings.

The playground was still the same playground, the teaching building was still the same teaching building, and even the rust marks on the fence were exactly the same as when he left.

But everything is different now.

He stood there, yet felt like a bystander, watching a grand spectacle that had nothing to do with him.

75,000 years...

He spent a full 75,000 years in the primordial world!

But only one year has passed on Blue Star.

When he left, he was still that young man standing in the golden pillar of light, filled with determination and trepidation.

Now he has returned, but he has already reached the late stage of Quasi-Saint cultivation. He has experienced the Lich War, witnessed the birth of a Saint, fought with the Three Pure Ones, and made an agreement with Houtu.

His life has completely changed!

This feeling is strange.

It's like you leaving home to travel far away, walking a very, very long road, crossing many, many mountains, experiencing many, many things, and then you come back.

The home is still the same home, but you are no longer the same person.

Meng Chuan took a deep breath and then slowly exhaled.

Fortunately.

Apart from the fact that it can travel through countless worlds, Blue Star is very similar to Earth in every other way.

Cell phones, the internet, cars, skyscrapers... these familiar things quickly brought him back to the feeling of "coming home".

He recalled when he first transmigrated here, standing on this playground, looking around blankly, not knowing where he was.

At that moment, a pretty girl with a high ponytail and wearing a light green outfit walked up to him, tugged at his sleeve, and said, "Meng Chuan! What are you daydreaming about? The principal is about to speak!"

He remembered that girl.

What was it called again?

Her name seems to be... Li Qiuyue?

Yes, Li Qiuyue!

They were deskmates in their first year of high school.

She had excellent grades, a cheerful personality, and often helped him with his problems.

He was introverted and didn't talk much, but she always managed to find topics to talk about with him.

On the day of departure, she was teleported away before him...

Green beam of light!

High Martial Arts World!

As she left, she turned back and smiled at him, saying, "Meng Chuan, good luck! See you in a year!"

See you in a year...

But she didn't come back.

Over a period of 75,000 years, he experienced countless life-and-death situations and witnessed countless partings in the primordial world.

But back on Earth, when he thought of the girl who used to sit next to him, a faint sense of melancholy still welled up in his heart.

He snapped out of his reverie and his gaze fell on the crystal stone, which was more than three meters tall, in the center of the playground.

Interdimensional Teleportation Stone!

Eight hundred years ago, it fell from outer space onto Earth, changing the fate of all humankind.

He had never looked at the stone closely before.

But now, with his late-stage Quasi-Saint cultivation, he swept his divine sense over it, attempting to probe its mysteries—

Then, he broke out in a cold sweat!

The moment his divine sense touched that crystal, it was as if he had fallen into a bottomless abyss!

A terrifying devouring force emanated from within the crystal, almost engulfing his divine sense entirely!

Meng Chuan abruptly withdrew his divine sense, his expression changing slightly.

He stood there, staring at the crystal, his heart filled with turbulent emotions.

With his cultivation at the late Quasi-Saint stage, he was almost devoured by a stone.

What level of existence is this thing?

This crystal once sent him to the primordial world, a world that even Hongjun, after merging with the Heavenly Dao, could not fully control.

Moreover, it seems that Hongjun never noticed his "abnormality" during the primordial era.

Otherwise, they might have killed him long ago.

What does this mean?

This means that the power of this crystal is at least above Hongjun, above the Primordial Heavenly Dao, and may even be comparable to or above the Primordial Great Dao.

Meng Chuan took a deep breath to suppress the shock in his heart.

He looked at the crystal again, his gaze becoming much more serious.

This thing is more mysterious and more powerful than he imagined!

His current cultivation level is far from sufficient to explore its mysteries.

Perhaps, he can try again after he has attained the Primordial Dao.

He withdrew his gaze, his divine sense spreading out, sweeping across the entire Cloud City, across the entire Great Xia Dynasty, and across the entire Blue Star…

Then, he froze!

What did he see?

The entire Blue Star was shrouded in multiple massive arrays!

The arrays were layered and interlocked, completely enveloping the entire planet.

Meng Chuan carefully sensed the strength of those formations and was slightly surprised.

These formations are at least the work of a Taiyi Golden Immortal!

Moreover, there is more than one layer.

There are at least seven or eight floors!

Layer upon layer, each layer reinforces the others, forming an extremely robust defense system.

He continued his exploration and discovered that above these planetary arrays, there were also national protective arrays belonging to various countries.

The Great Xia's protective array is particularly eye-catching!

It was a colossal array covering the entire territory of the Great Xia Dynasty, with intricate array patterns and a magnificent aura, faintly exuding an aura of suppressing all directions and looking down upon the world.

Meng Chuan carefully sensed the cultivation aura left behind by the person who set up the formation...

Taiyi Peak!

Half a step into the Great Luo!

In other words, the person who set up this formation must have been at least at the peak of the Taiyi Golden Immortal realm, and may even have already reached the threshold of the Daluo Golden Immortal realm.

Meng Chuan's divine sense continued to spread, sweeping across all signs of life on Blue Star.

He counted...

There are hundreds of powerful individuals at the Immortal Realm level or above!

Among them, there are dozens of Golden Immortals.

There are also several at the peak of the Golden Immortal realm.

What's going on?

Interdimensional teleportation stones only appeared on Earth eight hundred years ago, right?

In the original owner's memory, the person with the highest cultivation level who returned from the world of high immortals in history was only at the late stage of the Refinement of Void realm. In an environment as barren as Blue Star, it would be difficult to even reach the Mahayana stage in just eight hundred years, let alone become an immortal!

It seems that Blue Star has many "secrets" that the original owner was unaware of.

Soon, through his deliberate exploration with his divine sense, he learned of the existence of the "Immortal and Demon World"...

It turns out that besides the martial arts world, the immortal world, and the primordial world, there is a fourth option!

"That explains it... No wonder there are so many immortals on Earth."

Meng Chuan felt relieved.

Following this, Meng Chuan's divine sense continued to extend, leaving Blue Star to explore even more distant cosmos...

His divine thoughts traversed the atmosphere, passed through lunar orbit, passed through Martian orbit, and extended all the way to the edge of the solar system.

Then, he discovered an interesting phenomenon.

The closer you get to the outside of the Milky Way, the richer the spiritual energy of heaven and earth becomes.

If we compare the concentration of spiritual energy outside the Milky Way to a vast ocean, then the concentration of spiritual energy in the solar system is probably just a drop of dew.

No wonder all beings above the Golden Immortal level on Earth are no longer here; they must have gone to places outside the Milky Way with richer spiritual energy...