Genshin Impact: I, Heavenly Principle, Will Make Teyvat Supreme

[System message: A divine miracle bridging two worlds has successfully been staged, garnering 2% of the human population's total faith in the Demon Slayer world. The 'Human Realm Force System' system can now begin enveloping the Demon Slayer world.]

The system's voice resonated in Noah's mind. His golden eyes glowed as the "Primordial Ring of Law" Halo materialized behind him.

The Primordial Ring of Law contained the three core systems governing Teyvat's permissions.

the "Human Realm Force System," "Light Realm Force System," and "Constellation System."

If Teyvat were a computer, the Primordial Ring of Law would be its operating hardware, while the three systems would serve as its software.

The "Light Realm Force" system was not originally part of Phanes' design but was created after it defeated the Second Throne and claimed its power, thus uniquely suited to Teyvat.

However, the "Human Realm Force" system was different. It was brought to this world by Phanes, capable of functioning wherever faith exists—a universal solution akin to a multipurpose tool.

The "Constellation System" complemented the Human Realm Force system, working in tandem.

[System message: The Human Realm Force system has extracted a wisp of the 'Supernatural Law' and a wisp of the 'Essence Law' from the Demon Slayer world. These laws can be used via the Light Realm Force system to forge a new Vision.]

"So, this is the law structure of the Demon Slayer world? It's weaker than Teyvat's laws but remarkably stable."

Two strands of glowing threads materialized in Noah's hand, and he was astonished by their nature.

The Supernatural Law belonged to the demons, enabling them to use Blood Demon Arts. The potential of these abilities was astonishingly high, capable of creating vast alternate spaces akin to Madame Ping's "Adeptus Abode."

The Essence Law, on the other hand, was associated with the Demon Slayer Corps, encompassing techniques like Breathing Styles and the Transparent World—manifestations of individuals' understanding of natural phenomena like wind, flame, water, or lightning.

In the Demon Slayer world, the techniques did not feature the dazzling effects portrayed in anime. They were pure, refined attacks imbued with profound intent.

Despite its weak foundational laws, the Demon Slayer world's laws were incredibly resilient. This likely explained its potential to last for billions of years, unlike Teyvat, which faced inherent limitations.

"Law threads…" Ei observed silently, watching the golden-hued god recline against the Sacred Sakura Tree. She understood that Heavenly Principle had begun the process of integrating the Demon Slayer world into its dominion.

Even though this world was weak, she could only hope that Yae Miko's efforts in that world would proceed smoothly.

Through the Light Realm Force system, the law threads transformed into a Vision in Noah's hand.

This Vision resembled the ones from the Seven Nations of Teyvat but was white, unlit by any human "desire."

A Vision offered the possibility of ascending to godhood, symbolizing a covenant between Heavenly Principles and mortals. However, every contract came with a price.

For Vision holders, the price was to dedicate their entire lives to fulfilling the singular, beautiful wish they made when the Vision was granted.

"To fight for all the world's beauty."

"I wonder whose wish will be strong enough to become the first to light up this Vision."

Noah toyed with the newly crafted Vision, a faint smile curving his lips. His golden eyes gleamed with curiosity.

Although he governed as Heavenly Principle, this was his first time personally bestowing a Vision. In Teyvat, Visions were distributed automatically by the Human Realm Force system.

He was eager to discover the unique design this Vision would bear once it was lit by the burning desire of a mortal from the Demon Slayer world.

In his estimation, many of the Hashira in the Demon Slayer Corps had what it took to receive a Vision.

The Demon Slayer World

By the next morning, news of the miraculous events at Mount Raiden had spread across nearby towns and cities. Nobles and aristocrats flocked to the area to offer prayers, wary of offending the Takamagahara1. Though the roads were not blocked by the shogunate or the Kannushi2, few dared ascend the mountain, choosing instead to gather in towns at its base.

Newspapers carried the story far and wide, ensuring the divine event reached the ears of people across the nation.

On the mountaintop, the abandoned Takemikazuchi Shrine—neglected for over a century—was being restored under the shogunate's direction with the help of the Kannushi.

The torii gate standing before the shrine, emitting faint electric light, became the centerpiece of rituals performed by shrine maidens. They danced the Kagura1, their youthful purity offered to the deity.

Among those present was the Ubuyashiki family, who shared a close alliance with the Kannushi through generations of intermarriage.

The Hashira of the Demon Slayer Corps, acting as guardians for their master, Kagaya Ubuyashiki, stood watch over the proceedings.

While not technically his retainers, the Demon Slayer Corps viewed Kagaya as their elder and guide.

"This truly is a gateway from the High Heavens… Takemikazuchi-no-Mikoto1, at last, your gaze has turned toward this land. For over a thousand years, we have awaited your attention," Kagaya said, trembling as he knelt before the glowing torii. Tears streamed down his face as he bowed in reverence.

For a millennium, the Ubuyashiki family had waged a relentless struggle against the curse of Muzan Kibutsuji.

The endless cycle of loss and sacrifice had claimed countless lives. Brave children, hardened by suffering, took up swords to confront the demons, only to meet their demise in the shadows.

Generation after generation, their sacrifices bore no end, and Muzan grew ever more powerful.

Now, however, Kagaya could see the dawn of hope. His children were extraordinary, the strongest of their generation. With the gods now casting their gaze upon the land, his family's ancient dream finally seemed within reach.

The Hashira, standing behind Kagaya, bowed their heads in deference to the deity as well.

"Is this torii truly connected to Takemikazuchi-no-Mikoto?" Shinjuro Rengoku murmured, his heart racing. His wife, Ruka, lay stricken with an incurable disease. The sight of divine intervention rekindled a desperate hope that he had thought long extinguished.

Standing behind him, Kyojuro Rengoku clenched his fists. He resolved to pray unceasingly before the deity, willing to give anything if it meant saving his mother.

"O Divine One… If you are truly watching over us, please rid this world of the demons that have caused so much suffering," said Gyomei Himejima, clasping his hands together. Tears streamed from his sightless eyes as he uttered his prayer.

The other Hashira shared the same reverence, standing solemnly as witnesses to an event far beyond anything they had dreamed possible.

Though not yet a full-fledged Hashira, Mitsuri Kanroji, selected for her immense talent, fidgeted nervously. Her cheeks flushed as her hands gripped the hem of her uniform.

"Ahhh, can I really be here? Such a grand event, surrounded by all the other Hashira. It's so overwhelming…"

As the Kannushi intoned prayers of invocation, he reached the climactic plea:

"Takemikazuchi-no-Mikoto, we humbly beseech you to grace us with your divine will!"

The torii shimmered with a brilliant light, and a thin veil of blue formed within its frame, giving the illusion that one could walk through it and ascend to the High Heavens.

Seeing this, everyone froze in awe, then hastily bowed their heads to the ground. No one dared to meet the gaze of the descending deity, for fear of incurring divine wrath.

Only the sound of footsteps echoed through the silence, each step a crescendo that made their hearts pound with reverence and fear.

A playful voice broke the tension.

"My, my, such an elaborate welcome. I must say, it's truly flattering~."

—Upon stepping through the World Gate, Yae Miko felt her vision blur, and the scenery instantly transformed.

The elemental energy she had always sensed so clearly was gone, as though a fish accustomed to saltwater had been suddenly thrust into freshwater.

Fortunately, the elemental energy within her own body remained intact. As one of the Narukami1's retainers, she could directly draw elemental energy from Ei through their connection, like sipping through a straw.

As soon as she stepped out of the World Gate, Yae Miko was startled to see a large crowd kneeling before her. However, she quickly relaxed.

In this world, gods existed only in myths and legends. This nation had a deeply rooted Shinto culture, worshiping all manner of beings, real or imagined.

The sight ignited a spark of mischief in her eyes. Since this was already a role-playing scenario, why not lean fully into it and play the part of a divine fox spirit messenger of Narukami herself?

In this nation's myths, fox spirits were considered a type of deity. Therefore, in this world, she could rightfully claim divinity.

She had long yearned to indulge in the feeling of being revered as a god. Teyvat offered no such opportunities, but in this weaker world, there was no harm in enjoying herself a little.

Her lips curled into a sly smile as she gazed at the mortals bowing with their heads to the ground. She jingled her kagura bell lightly and spoke with a teasing lilt.

"My, my~! Such a grand welcome! I must say, I'm quite flattered~."

"There's no need to bow so deeply. This time, it is not Narukami-sama herself who has descended. Mortal affairs could never trouble her enough to descend from her domain."

Hearing the alluring voice of a woman instead of the thunderous tone they had expected, the crowd stirred, confused yet curious. When she spoke those words, their hearts raced, and many dared to lift their heads.

What greeted their eyes left them awestruck.

Before them stood a maiden of otherworldly beauty. Her long pink hair cascaded gracefully, framing a pair of non-human fox ears perched atop her head. Her attire radiated mystery, blending elegance with an enchanting charm reminiscent of the legendary fox spirits of their myths. Her slender legs were deliberately—or perhaps carelessly—left exposed to the air.

Sacred, enchanting, pure—she seemed like a celestial fox spirit who had stepped straight out of a legend.

Behind her, two others emerged from the shimmering veil of the torii gate—a man and a woman whose presence also defied mortal comprehension. Their attire was less seductive than hers but exuded an unparalleled aura of nobility.

The materials, craftsmanship, and designs of their clothing were unlike anything from this world.

"My, my~! Have you all been so captivated by my beauty that you can't even respond to my words~?" Yae Miko chuckled lightly, though inwardly she was reveling in amusement. This reaction was simply too entertaining.

In Inazuma, even though yokai had become scarce, the people had long grown accustomed to their presence. They respected her more for her role as the Guuji of Narukami Shrine than for her identity as a fox spirit.

"Welcome, Lady Fox Spirit and esteemed immortals!"

The first to recover was the head priest of the Kamigakari Shrine family, Taikan Kamigakari. His face flushed red with excitement as he bowed deeply, his voice trembling as he shouted.

Although the one who descended was not Takemikazuchi-no-Mikoto, they were undoubtedly divine beings from Takamagahara. As a priest, he was honored to be the first in a millennium to welcome such beings.

"Lady Fox Spirit, may I ask what has brought you and these two immortal envoys to descend upon us? Is it a divine decree from Takemikazuchi-sama?" Taikan Kamigakari asked, his body quivering with emotion.

Yae Miko chuckled inwardly. This old man certainly knew how to play along. She decided she would teach him a few simple Onmyōdō techniques later.

Onmyōdō, after all, had been brought to Inazuma four centuries ago by a man named Harunosuke. Inspired by Liyue's Adeptus Arts, he had adapted them into techniques usable by ordinary humans.

Some of these basic techniques didn't require elemental energy but could instead be powered by a person's vitality and life force without any harmful side effects. Liyue, in fact, had many such practices—martial arts, inner energy cultivation, and more, supported by numerous sects.

"My master, Narukami-sama, recently cast her gaze upon the mortal world on a whim and was displeased to find it plagued by man-eating demons, their foul presence tainting the land with resentment. Thus, she sent me and her two divine envoys to cleanse this realm," Yae Miko explained with a wry smile, her tone playful yet authoritative.

Taikan Kamigakari immediately turned to Kagaya Ubuyashiki, his expression a mixture of awe and relief.

"So, this is the reason for your descent! Kamigakari Shrine and the Ubuyashiki family have been combating these man-eating demons for a thousand years."

According to ancestral records, the progenitor of these demons had once been a scion of the Ubuyashiki family, who inexplicably became a demon. Over the centuries, he multiplied his kind, creating an unending nightmare of bloodshed and despair.

Their family had been cursed ever since, with their descendants rarely surviving past their twenties—only prolonged by intermarriage with the Kamigakari Shrine family.

"Yes, Lady Fox Spirit. It is deeply shameful, but these man-eating demons are the legacy of a sin committed by my ancestor a thousand years ago. To atone, our Ubuyashiki family founded the Demon Slayer Corps, taking in children orphaned by demons and striving to end this curse."

Overcome with emotion, Kagaya Ubuyashiki struggled to contain his tears as he bowed even lower. Joy filled his heart as relief overwhelmed him.

At last, divine intervention had arrived to eradicate the demons that had plagued this land for so long.

"Indeed, I am aware of the Demon Slayer Corps. My master, Narukami-sama, sees all from her divine throne and has informed me of everything," Yae Miko said, folding her arms confidently.

Thanks to the wealth of knowledge in her mind about this world's future, her words carried undeniable authority.

Truly, that Celestial Lord of Sky Island was incredible. Was he perhaps the God of Time?

"The demons should have drawn divine attention a thousand years ago, but alas…" Yae Miko sighed theatrically.

"A thousand years ago?" Taikan Kamigakari repeated, puzzled.

Yae Miko nodded, inwardly amused by how well he played along. This old priest was the perfect straight man for her routine, akin to those comedic duos in Liyue's famed skits.

"Indeed. None of the deities worshipped on this land are addressed by their true names. It's as though letters to the gods were sent with the wrong names and addresses. How could the gods respond?"

She jingled her kagura bell again. The clear sound resonated.

"What?! We've been worshiping the wrong names?" Taikan Kamigakari exclaimed, eyes wide with disbelief. His reaction was as if lightning had struck him.

"Precisely. The deity you call Takemikazuchi is actually named Narukami no Mikoto1. Though the meaning may seem similar, the gap between the two is as vast as the heavens and the earth."

With an air of authority, Yae Miko gracefully entered the dilapidated Takemikazuchi Shrine, her every movement radiating poise.

"This isn't entirely your fault, of course. After all, the gods have not descended since the Age of the Gods, three thousand years ago."

"Gods are eternal, but human lives are fleeting. Over a hundred generations, it's inevitable that knowledge passed down by word of mouth would become distorted, even to the point of misnaming the gods."

She turned back to face the crowd. Some stared wide-eyed, others listened intently, while still more seemed struck by her words. Her gaze sparkled with delight.

Ah, the joy of leading others by the nose—truly intoxicating.

And this wasn't even a lie. Lies could be exposed, but this? This was unassailable, making her mischief all the sweeter.