When the First Emperor heard this, a fiery light instantly burst out from his dragon eyes, which had become increasingly clear due to the nourishment of the crystal core.

space!

Witness the miracle with your own eyes!

No emperor could resist this temptation, especially him, the First Emperor who founded the glorious Qin Dynasty!

"good!"

The First Emperor's voice was like a loud bell, carrying unquestionable majesty and a hint of uncontrollable excitement.

"Fusu, I'll go with you! I want to see this magical space with my own eyes!"

Fusu was delighted and hurried forward. He imitated his previous behavior, gently placing one hand on the First Emperor's arm, signaling his father to relax, and with the other hand he stroked the light pink key mark on his wrist.

He muttered to himself, trying to communicate with the space and bring his father in with him.

However, at the moment when his thoughts connected with the spatial mark - something strange happened!

“Buzz!”

An overwhelming and unstoppable force suddenly rebounded from the mark, carrying a destructive aura and slamming into the two of them!

That power is invisible and intangible, yet it seems to weigh more than ten thousand kilograms!

"puff!"

“Hmm!”

The First Emperor and Fusu groaned almost at the same time, feeling an irresistible force hitting their chests, and their bodies flew backwards uncontrollably!

The First Emperor had never been treated like this before. He was shocked and angry, but he didn't even have the slightest room to resist!

At the critical moment, two inky black figures flashed from the shadows of the hall like ghosts, one on the left and one on the right, and held up the First Emperor and Fusu who were about to fall down with incredible precision.

It was the most elite shadow guard around the First Emperor!

They were like weightless shadows, steadily catching the two men and relieving the terrifying impact, but they also took three steps back, and the hard bluestone slabs under their feet cracked inch by inch!

Even so, the recoil force caused their blood to surge, and their faces turned pale. If the shadow guard hadn't been so agile and able to dissipate the force in time, they would have suffered internal injuries by now!

The First Emperor clutched his chest and coughed violently several times, his eyes filled with shock and horror: "What...what's going on?!"

That power was pure, vast, and carried an inviolable majesty, as if it was a direct manifestation of the rules of heaven and earth!

Fusu also looked confused and frightened. He struggled to stand firm and looked at his wrist. The mark still emitted a soft light, as if the horrible backlash just now had nothing to do with it.

"Father, I...I don't know either." His voice was dry. "I've never encountered such an obstacle before."

After all, the First Emperor was an emperor of all ages, and he quickly calmed down. He took a deep breath, and the shadow guard had silently presented him with two crystal clear second-level crystal cores.

The father and son were not polite and immediately started absorbing energy.

But after a moment, the turbulent blood and energy calmed down, and the pale face regained some redness.

"Fusu," the First Emperor said in a deep voice, his eyes as sharp as an eagle, "Try again!"

He doesn't believe in evil!

This immortal opportunity is right before our eyes, how can we pass it by without entering?

Fusu was also feeling unwilling and confused. He nodded heavily, concentrated again, carefully placed his hand on the First Emperor's arm, and gently touched the mark on his wrist with his other hand, trying to communicate again.

**"boom!"**

The results are exactly the same!

Another more powerful and domineering force rebounded, as if carrying a warning.

This time, the shadow guard who had been prepared flew out again and barely caught the two of them, but he was also shocked and retreated several steps, with a trace of blood even flowing from the corner of his mouth!

Inside the hall, the air was turbulent, and the bamboo slips on the table were scattered all over the floor.

"Impossible!" Fusu screamed, and the blood drained from his face.

He won't give up!

Next, Fusu gritted his teeth and racked his brains.

He first tried to let the First Emperor touch the mark on his wrist himself, trying to let the space "recognize" this human emperor.

—Failure! The mark showed no reaction under the First Emperor's fingertips, like a dead object.

He tried to hold the First Emperor's hand again, and they both focused their minds on the mark.

—Failure! Still being violently ejected by that unmatched force!

He even had the wildest idea to try it in different locations and postures in the palace... For example, after bathing and burning incense, he would try it again with a pious heart.

Three or four times in a row, each time I tried a different method, but the result was always the same—failure! Failure! Failure again!

The power was firm and clear, with an unquestionable will: Only Fusu can enter through this door!

The hall was in a mess.

Fusu was sweating profusely, panting, his face full of dejection and confusion.

The First Emperor stood there, his dragon robe even stained with some dust. This emperor who looked down upon the world had a complicated expression on his face at this moment.

There is shock, loss, and unwillingness, but more of it is a deep thought.

After a long while, he looked at Fusu, who was almost in despair, and then he sighed deeply, his voice raspy and tired:

"Forget it, Fusu."

The First Emperor waved his hand, indicating that there was no need to try again.

His gaze fell on the still pale pink mark on Fusu's wrist, his eyes deep: "It seems that this immortal space, this so-called 'key', really... only recognizes you."

There was no more coercion in the words, only helplessness and acceptance of this mysterious rule.

This mysterious space is even more...domineering than he had imagined.