The entire planet accelerated as it moved, only to be instantly sucked into Ye Liuyun’s spatial realm the moment it reached him.

Within Ye Liuyun’s spatial world, a cataclysmic transformation began to unfold.

The previously separate massive islands had already merged into a hemispherical landmass. Now, as the two worlds collided and pressed against each other, the very earth and mountains warped under the immense force. The newly absorbed planet cracked open with a massive fissure before being torn apart, while the original world forced its way through the gap, widening the fracture even further.

During the merging process, both worlds underwent continuous changes until they gradually settled into a larger, spherical form. The terrain had completely transformed, giving rise to towering mountain ranges and vast oceans.

The sun and moon, originally formed from flame crystals, immediately began orbiting the new planet, making the cycle of day and night more akin to reality.

Yet, despite the changes, the spiritual energy in this new world remained abundant. After all, Ye Liuyun had absorbed the essence of numerous worlds, ensuring no shortage of power.

Once the spatial realm stabilized, Ye Liuyun gradually returned everyone to their homes. With his world now expanded, accommodating them was effortless.

Apart from designated areas for himself, his companions, military garrisons, and some feral beast, he allowed people to settle wherever they pleased, free to build their own homes. Many cities here didn’t even have mayors, let alone rulers or dynasties.

Truth be told, Ye Liuyun didn’t govern them. Most of the inhabitants had survived alien invasions and understood the importance of unity—banding together to resist external threats.

After resettling everyone, Ye Liuyun quietly waited for the fusion of the world’s essence to complete.

But this time, once the merging was done, he suddenly realized something—he could now effortlessly harness the power of his spatial world.

Moreover, this power was immense—so overwhelming that he had never dared to imagine possessing such strength before.

He tested it by striking a small island floating in the starry void. With just one blow, the entire island was reduced to dust.

By all accounts, an island of that size could be considered a miniature world. Yet, with a single palm strike, he had obliterated it completely, leaving even himself stunned for a long moment.

The force behind that strike didn’t come from his Profound Essence or the energy of heaven and earth. Instead, he had borrowed it entirely from his spatial world.

Worried that he might deplete the energy of his spatial realm, he immediately sought Ye Ling’s advice. But to his surprise, she told him he hadn’t drawn much power at all—it had barely made a dent in the spatial world’s reserves.

“This...” Ye Liuyun was so astonished he couldn’t even form words.

“Congratulations! You’ve finally become a true powerhouse!” The Book Demon suddenly chimed in.

“If I’d known it was this strong, I would’ve expanded my spatial world much sooner!” Ye Liuyun sighed in amazement.

“Without the necessary strength back then, you couldn’t have expanded it even if you wanted to,” the Book Demon retorted.

“So, should I focus on enhancing the power of my spatial world from now on?” Ye Liuyun asked for guidance.

This overwhelming strength made him feel as though his cultivated energy was almost insignificant in comparison.

“Of course not! On the contrary, I think you should treat this power as your trump card and focus on accelerating your Profound Essence cultivation. Once your Profound Essence reaches a certain level, it can rival the power of your spatial world. But right now, you’re still far from that point,” the Book Demon explained.

“My Profound Essence can grow that powerful?”

Ye Liuyun was even more bewildered. He had thought his current realm was already high enough, yet he was still leagues away from such formidable strength.

The Book Demon patiently elaborated, “Think about it—how much energy did you absorb when you broke through your previous bottlenecks? Tens of times more than usual. How could all that be fully converted into your own power so easily?"

"In other words, your current Xuan Yuan essence is still far from refined enough! You need to keep compressing it within this realm. Once the quality of your Xuan Yuan improves, your breakthrough to the next realm will come naturally."

"But which aspect should I focus on cultivating? And what comes after the next breakthrough?" Liu Yun pressed.

"Think about it—the Heavenly Human realm is all about achieving harmony between man and nature. When you cultivate to the point where you feel you *are* the heavens and the earth, you’ll naturally become the master of this world. And the next realm? That would be Sovereign.

"But reaching that level requires more than just mastery over the power of heaven and earth. You’ll also need to grasp the forces of space and time. Only those who command both can truly be called Sovereign."

The Book Demon patiently explained, its tone measured and instructive.

"I understand space power, but how do I cultivate time power?" Liu Yun had always been fascinated by time manipulation but had no idea where to start.

"Your space power isn’t even close to mastery yet! Right now, your battles are confined to a single planet or island—the scale is too small. Future fights should take place among the stars.

"As for time power... that depends on your own fortune and insight. But space power is undoubtedly its foundation."

Liu Yun frowned. "But the alien invaders are all on the ground. Who would I fight in the void of space?"

"Then figure out how to destroy them from the stars. Right now, your space power is only useful for dodging attacks in battle—hardly impressive. Can’t space power be used to wipe out the invaders? Use your imagination!"

The Book Demon only gave hints, refusing to spell out the solution.

Liu Yun considered methods like spatial compression and dimensional fractures, but he had never dared to test them against entire alien armies. The risk of retaliation from an enemy with superior spatial abilities held him back.

"Alright, I’ll give it a try later."

He agreed, resolving to experiment more. Now that he could draw power from his spatial world—an entire realm’s worth of strength—there was nothing to fear.

Later, he had another conversation with Ye Ling to discuss borrowing the power of the world.

Ye Ling explained to him, "If you replenish some resources after using it, then there shouldn’t be any issues. But this world also needs time to recover. If you keep draining its energy without restraint, it will eventually be exhausted."

Thanks to the refinement of the spatial world and the abundance of energy, Ye Ling had grown significantly. She now appeared to be around fourteen or fifteen years old, speaking with far more maturity than before. Gone was her mischievous, troublemaking nature.

Within Ye Liuyun’s spatial world, aside from Ye Liuyun himself, she was now the most powerful being. She, too, could harness the world’s primordial energy.

Even the demonic vine behaved meekly in her presence, not daring to provoke her.

As a result, Ye Ling had effectively become the overseer of Ye Liuyun’s spatial world—his right-hand steward, so to speak.