"Open the specially created miracles in both worlds. By doing so, you can draw two percent of the total faith of humanity within that world. The Human Power system can now extend into the world of Demon Slayer: Kimetsu no Yaiba."
The system's voice echoed inside Mathew's mind. His eyes turned golden, and behind him appeared the 'Original Dharma Ring'—a luminous circle radiating endless authority.
This ring was no ordinary artifact. It contained the three great systems that governed Teyvat's order:
the Human Realm Force,
the Light Realm Force,
and the Seat of Fate.
If the world of Teyvat could be compared to a computer, then this Dharma Ring was the core hardware. The three systems were its operating programs—powerful and irreplaceable.
The Light Realm Power System had not existed in Teyvat from the beginning. It was born after Phanes defeated the Second Throne and seized his might, making it exclusive to Teyvat. By contrast, the Human Realm Power System was different. Phanes had brought it here from the beginning, and wherever faith existed, this system could take root and thrive. It was like the essence oil that fueled divinity. Alongside it, the Seat of Fate worked as a natural counterpart.
"The Human Realm Power System has intercepted a fragment of the 'Principles of Supernatural Power' and a wisp of the 'Laws of Artistic Conception' from the Demon Slayer world," the system announced. "These can be reshaped using the Light Realm Power System into a new Eye of God."
Mathew's golden eyes glimmered with intrigue. "So that is the law of the Demon Slayer world? Weaker than Teyvat's, but still formidable."
Two beams of light materialized in his hands.
One carried the law of supernatural power, the foundation of the demons' blood arts. These blood techniques could manifest alien realms, manipulate matter, and distort space—abilities rivaling Madame Ping's 'Ju Tian Technique' in Liyue.
The other contained the laws of artistic conception, the essence of the Demon Slayers. The breathing styles—whether fire, water, wind, or thunder—were nothing more than human bodies channeling natural concepts into deadly precision. Unlike the dazzling effects depicted in tales, true breathing styles carried only the weight of intent, the force of artistic understanding.
Though fragile compared to Teyvat's divine laws, these Demon Slayer laws were paradoxically resilient. Weak yet unyielding, they had endured for countless millennia, while even Teyvat itself could not claim such permanence.
High upon a sacred mountain in Inazuma, the Raiden Shogun gazed toward the heavens where Mathew's presence stirred. She sat beneath a massive cherry tree, watching the strands of law thread through the skies. "So, Tianli begins absorbing that world as well," she murmured. Though Demon Slayer's world seemed weak, she could only hope the will of the gods guided it peacefully.
Through the Light Realm System, the fragments fused, weaving themselves into form. In Mathew's palm appeared an Eye of God crafted from silk-like threads, its glow soft yet untainted. Unlike the colorful Visions of the Seven Nations, this one gleamed pure white, unlit by mortal desire.
It was beautiful, yet incomplete.
For every Eye of God was more than a blessing—it was a contract between heaven and humanity. Those who bore it might ascend toward godhood, but only if they dedicated their lives to fulfilling the desire etched within the moment of its birth.
The inscription within this Eye read: "Fight for all the good in the world."
Mathew twirled it between his fingers, a sly smile tugging at his lips. "Interesting. I've never personally granted anyone an Eye of God. In Teyvat, they arise naturally through the Human Realm Power System. Let's see… what kind of mortal will awaken this Demon Slayer Vision first?"
His curiosity burned. In his heart, many of the Hashira—the Pillars of the Demon Slayer Corps—were worthy candidates.
The World of Demon Slayer
The next morning, rumors of a divine miracle spread like wildfire. Across towns and villages, nobles and commoners alike whispered of heavenly signs that had descended upon the land. Even the powerful families trembled with reverence. Afraid to desecrate the sacred mountain, they remained below, offering prayers and gifts.
The once-abandoned Raijin Shrine, forgotten for centuries, now stirred with life. The shrine families and the shogunate worked together to rebuild its halls. At its gate, the great torii arch stood glowing faintly, a veil of lightning flickering across its surface. Shrine maidens, barely past childhood, danced Kagura rituals in its shadow to honor the heavenly descent.
The first witnesses of the miracle—the Ubuyashiki clan—stood foremost. Bound by generations of duty, they had long allied with the shrine families. Around their frail head, Ubuyashiki Kagaya, the Pillars of the Demon Slayer Corps gathered as guardians, ready to protect their lord.
Though the Demon Slayers did not serve the clan as retainers, they respected Kagaya as their spiritual elder. For centuries, the Ubuyashikis had carried the curse of Muzan's wrath, sacrificing themselves for humanity's sake. To the Demon Slayers, that devotion made Kagaya their true leader.
Before the torii, Kagaya knelt, his body frail and trembling. Lightning shimmered along the gate's surface, and tears welled in his eyes. His voice cracked with reverence: "It is truly the gate of Takamagahara… the gods have finally turned their gaze upon this land. For a thousand years, we have waited. Now… our prayers are answered."
The Ubuyashiki clan had fought Onimai Tsuj i Muzan's line for ages, yet victory always slipped away. Generations of children were sacrificed to the endless cycle—innocents becoming Slayers, Slayers dying as martyrs, and Muzan's spawn multiplying like a curse upon the earth. But now, for the first time, divine intervention had appeared. For Kagaya, this was salvation.
Behind him, the Hashira bowed their heads. Their hearts swelled at the sight of their lord weeping—proof that their clan's centuries-old wish was at last within reach. Even hardened warriors trembled at the aura radiating from the torii.
"Is this truly built by the Thunder God himself?" whispered Shinjuro Rengoku, eyes wide with awe. His wife lay deathly ill, beyond the help of any doctor, yet now he dared to hope. Though legends said the Thunder God could not heal mortals, Shinjuro could not suppress his prayer.
Beside him, young Kyojuro Rengoku clenched his fists. He, too, dreamed of begging the gods for mercy—to save his mother's life. "Even if I must kneel for days, I will not stop," he swore silently.
A monk stepped forward, dressed in plain robes, hands clasped as tears streamed from his blind eyes. His voice quavered: "Lord God, how blessed we are. If you truly gaze upon us, grant this one wish—let the demons who wrought centuries of tragedy be erased forever."
Nearby, Giyu Tomioka stood silent, expression unreadable, but his lowered gaze revealed his reverence. For once, even he could not deny the awe of divinity.
All the Pillars were shaken. Never in their wildest dreams had they imagined serving as bodyguards to a god's descent.
Among them stood Mitsuri Kanroji, not yet a Pillar but newly recruited for her prodigious strength. Her cheeks flushed crimson as she fidgeted nervously. Surrounded by such esteemed warriors and dignitaries, she clutched her clothes with trembling hands. "Ahhh… is this really a place where I belong? So many great people… I'm too nervous!"
The Great Priest of the shrine lifted his voice, chanting prayers with booming authority. As the ritual reached its climax, he cried aloud:
"We beseech the Thunder God of the Heavens—send forth your divine will!"
At his words, the torii blazed brilliantly. A shimmering film of blue light spread across its gate, like a veil between worlds. Beyond it lay Takamagahara itself—the realm of the gods.
The crowd gasped, dropping instantly to their knees. None dared lift their heads, for it was forbidden to gaze directly upon the divine.
Then, the air shifted. Footsteps echoed softly, each step making mortal hearts hammer violently in their chests. The pressure was unbearable, yet intoxicating.
They knew.
The god had descended.
And then, breaking the silence, a carefree voice rang out:
"Aiya~, such a grand welcome ceremony… truly, I'm surprised!"
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