Chunibyo in Cultivation World

“Come, let me see the power of decay!”

Li Tianwei first took out the Saint Soul Banner and planted it within the cave residence. Then he summoned the Radiant Wheel, instructing the Book Spirit to keep watch over the surroundings and alert him if anything unusual occurred.

Finally freed from the stifling confinement of the storage ring, the Book Spirit immediately sensed Li Tianwei’s presence.

“You’ve reached the Golden Core Realm?”

Sensing Li Tianwei’s cultivation, the Book Spirit was momentarily stunned, but quickly recovered.

“As expected of my master—he has already reached the Golden Core Realm in such a short time.”

“Wait, this Dao Intent…”

The Book Spirit seemed to have perceived something, and as it observed Li Tianwei, it was utterly dumbfounded.

“A hundred kinds of Dao Intents? What the—am I hallucinating?”

After probing several times more, the Book Spirit became absolutely certain that the aura of Li Tianwei’s Dao Intent truly contained over a hundred variations.

“How is that possible…”

The Book Spirit couldn’t help recalling Li Tianwei’s previous plan—Three Thousand Converging-Heaven Intentions.

Back then, it had treated that as a joke. Now, there was no need for words.

“I feel like I should change my name.”

Without the slightest hesitation, the Book Spirit acted immediately. If Li Tianwei had chosen to examine it through the Radiant Wheel, he would have discovered that the cover of the book within already bore a new title—Three Thousand Converging-Heaven Intentions.

Such decisiveness, such reaction—the Book Spirit considered it only natural.

Then, following Li Tianwei’s instructions, it carefully and attentively monitored the entire cave residence, guaranteeing that even the faintest disturbance would be met with the might of the Radiant Wheel.

Li Tianwei was quite satisfied with the Book Spirit’s conduct and obedience.

After that, he placed his hand on the Saint Soul Banner and drew out the Immortal Energy from within the Forbidden Land of Taixu.

This pure Immortal Energy was far superior to the Spiritual Energy of the Sacred Land of Lingxu.

Once all preparations were complete, Li Tianwei closed his eyes and began to comprehend his Golden Core.

The Chain of Decay—understanding radiation, the application of emission—all of this, Li Tianwei also integrated into the Scripture of Supreme Virtue and Radiant Purity.

Of course, that scripture used radiation to purify all things under heaven, whereas Heaven-Ending Yin Fiend was meant purely for offensive use.

The purposes were entirely different.

When constructing the Heaven-Ending Yin Fiend back then, it had been to harmonize with his understanding of Dao Intent. Thus, Li Tianwei continuously incorporated various spells and methods he had cultivated, assembling them into one complete art.

Now, however, it was time for transformation—to evolve it into a Divine Ability.

As a protagonist, how could he not have a Divine Ability of his own! Prison Heaven didn’t count—that was something he had comprehended when peering into the heavens.

As for Heavenly Eye, that wasn’t even a Divine Ability—it was just an innate ability.

【……】

Upon hearing Li Tianwei’s thoughts, the System immediately recalled how it had once exhausted everything it had to help him achieve the World’s Blessing Power.

If it could, the System wanted to cry its heart out. Back then, it had been so high-spirited, eager to prove its worth—only for Li Tianwei to completely disregard it.

Still, remembering that some remnants of that World’s Blessing Power remained, the System thought perhaps it would one day have a chance to shine before him again.

Li Tianwei, however, knew nothing of the System’s little thoughts. Even if he did, he would probably sneer. That so-called Blessing Power had produced nothing more than Heavenly Eye—nothing impressive at all.

In Li Tianwei’s view, neither of his current Divine Abilities were truly his own. One came through insight, and the other was innate.

But if he could push Heaven-Ending Yin Fiend further—then that would be something he himself created, fundamentally different from the rest.

The power of a Divine Ability far surpassed Dao Intent, spells, or any ordinary techniques by more than a small margin.

With three Divine Abilities, each move would begin with divine power—by then, even facing a Spirit Transformation Realm cultivator, he wouldn’t need to detonate his Golden Core.

Li Tianwei immediately summoned his Golden Core.

A massive golden sphere appeared within the cave residence. Terrifying pressure poured forth, distorting the very air around it.

Upon the surface of the floating Golden Core spread a web of cracks. If one looked closely, one could see faint, twisted phantoms deep within—distorted, warped, and ominous.

The air, even heaven and earth themselves, fell silent upon the Golden Core’s appearance.

The Book Spirit instinctively wanted to retreat, its form trembling under the Core’s presence.

Within that Golden Core, it seemed to see an entire world.

Li Tianwei, however, ignored everything else. He began to draw upon the strange Chain of Decay within the Golden Core—the abnormal radiation.

“Heaven-Ending Yin Fiend.”

At once, Li Tianwei activated the technique. Shadows materialized around him, and an aura of extreme Yin spread outward toward the western surroundings.

The entire cave residence became saturated with sinister, frigid power.

With both the Golden Core and Heaven-Ending Yin Fiend fully unleashed, Li Tianwei began to work using his knowledge and intellect.

First was the structure of the various spells within the Heaven-Ending Yin Fiend, then the now-mutated Golden Core.

Two utterly different forces intertwined and counterbalanced each other.

“Radiation, emission, amplification, convergence…”

“Heaven-Ending, Heaven-Ending… Yin Fiend?”

Before long, Li Tianwei had already grasped a faint clue.

“Since it’s an offensive art, it must be ruthless. Against evil and demons, one must use special means.”

“Heaven and earth’s stray thoughts, grievances, all kinds of curses and evil forces…”

“They’re not human—so there’s no need for morality.”

Li Tianwei’s concept was simple: transform Heaven-Ending Yin Fiend into a chain-like radiation that broadcasted all manner of curses, offensives, and Yin-evil resentment. It would infiltrate the demons’ very essence, slowly mutating them.

The key lay in omnipresence—in an all-pervading radiative corruption at the atomic level—until they dissolved completely.

“Yes, that’s it.”

Having grasped the concept, Li Tianwei began constructing the new form of his Golden Core’s mutated aura, combining it with countless ruthless and venomous techniques he had mastered.

Many of those were sinister methods he had comprehended himself.

After all, Li Tianwei had personally experienced numerous secret arts and their side effects through the Undying Body of the Sacrificial Dao. Of course, he incorporated all of them.

Such was Li Tianwei’s unconventional way of thinking—even side effects could become part of his art.

Having experienced them firsthand, he knew just how terrifying they were.

As for the Yin arts and curses, he judged them based on knowledge and strength.

Thus, Li Tianwei continued layering, constructing, and linking—eventually losing count of how many techniques he had incorporated, including those born from his mastery of dangerous secret arts.

At this point, Heaven-Ending Yin Fiend had reached an utterly unique state.

One could say that to learn this art, one must first master tens of thousands of spells, connect them together, and personally endure their backlash—only then would one be qualified to cultivate it.

But most crucial of all—one would still need Li Tianwei’s abnormal Golden Core.