According to the message left by Otsutsuki Ryushiki, those four golden cards exist within the spatial barrier between the final world and this world.
The next time that spatial barrier opens, Otsutsuki Ryushiki will likely attack again...
Inside the lunar palace, Shiraishi systematically sealed away and took a massive amount of historical records, data, and various special medicines refined by the Otsutsuki clan.
This clan with a thousand-year history clearly possessed an extremely rich heritage. Many of their secret techniques could be used directly without needing to awaken the Tenseigan, making them very suitable for Uzumaki Tomoko.
Dressed in pure white clothes, Shiraishi lit a candle inside the deepest secret room of the lunar palace. The residual smell of blood in this area indicated the grim reality of the previous battle.
That Otsutsuki Toneri probably died right here...
Amidst the scattered bloodstains, Shiraishi raised the candle in his hand and stared at the mural in front of him. For a moment, his mind became dazed, and the surrounding world fell completely silent.
Suddenly, the space around Shiraishi shifted. In the silence, a small moon slowly rose into the air, reflecting against a blazing solar fire. Simultaneously, a familiar voice suddenly echoed from the darkness.
"This counts as our first official meeting, human."
The voice of the primordial beast from the other world appeared once again in the dark world.
Shiraishi looked up into the high sky and saw more than a dozen black crystal pillars floating and continuously circling around, creating an immense sense of pressure.
The primordial beast...
This beast, which embodied both light and darkness, seemed to be in a strange state of stillness. However, Shiraishi knew very well that it was greedily absorbing the light of the sun and the moon from the outside world to refine its own crystal structure.
"I am not like those fools who willingly lend their power out for free. Originally, even if you obtained the cards, you would not be able to use my power. But looking at you now, I find you quite interesting."
"I don't understand what you mean..."
"You don't need to understand. Now, prepare to accept my gift."
On that day, the primordial beast had directly channeled the full force of Photon Surge into Shiraishi's body, instantly raising the skill card's proficiency to 100%. At the time, it had said: "I look forward to the day we truly meet in the future."
The past memory of meeting the primordial beast inside his consciousness flashed by quickly, and a deep look appeared in Shiraishi's eyes.
This was an extremely greedy and ferocious monster. In the world of the first mirror's owner, it had devoured countless powerful legendary creatures, acting almost like a world-destroying dragon.
Shiraishi remained very cautious regarding such a monster: "I didn't expect us to meet again."
"Hahaha! But you don't look like you wanted to meet me again at all."
The terrifying monster made of dark crystals spoke with a hint of demonic charm in its voice.
As the sound waves vibrated with a surreal quality, Shiraishi's figure warped and reappeared on the other side of the room: "I see. Have you been inside the sealing barrier of the Moon this entire time?"
The primordial beast had actually been slumbering inside the ancient seal that once held the Gedo Mazo and Kaguya. Now, due to Shiraishi's accidental intrusion, a new chapter had begun.
In reality, the primordial beast was mainly here to absorb the light of the sun and the moon to heal its wounds from a war a thousand years ago.
Having read the memories of the first mirror's owner, Shiraishi naturally knew that the owner had fought a decisive battle with this primordial beast in another world and heavily injured it.
He hadn't expected the primordial beast to directly tear through the spatial barrier and come to this world.
However, Shiraishi considered a very serious problem: "Is breaking through the spatial barrier really that easy?"
"At the very beginning of this world's birth, I sensed a system within it that is compatible with my own power. This indicates that a special invader existed here from the start, changing the original rules."
The primordial beast explained very patiently. No matter what, Shiraishi was a human it recognized. In such an unfamiliar world, it also needed a cooperative human to help it complete its transformation and ultimately escape this world.
"You need me to take you out of this world?"
"That is exactly why I gave you my gift."
After a long silence, Shiraishi looked at the dark crystal monster in the sky: "What do you need?"
"The source of light outside."
The power of the Tenseigan?
Sensing Shiraishi's suspicious gaze, the primordial beast spoke coldly: "What I need is the power of light, not what you people call chakra. Rest assured, to me, devouring chakra is equivalent to self-destruction."
The unique targets of the primordial beast's consumption were various light sources. Unlike the skills or summoned beasts that Shiraishi had localized and modified, this primordial beast, much like Kikyo, came from an outside world, so its power system did not fully fuse with this world.
However, the reason it was so keen on helping Shiraishi was that it realized Shiraishi might have a way to get close to that destroyed world...
Inside that world lay the power of the entity it hated most.
"In exchange, I can help you control that bone blade weapon."
The Black Murderous Bone left behind by Otsutsuki Ryushiki?
The weapon had been forged from the bones of the Otsutsuki clan. The fact that it had remained intact even after taking a direct hit from Shiraishi's Photon Release and Kikyo's Sacred Arrow proved how extraordinary this bone weapon was.
Under the baptism of Kikyo's purifying power, the Black Murderous Bone had turned into a plain, white bone blade. Yet, the moment Shiraishi gripped it, he could still feel the immense strength within the bone.
"Now that the bone blade has been thoroughly purified, it is in a state of chaos. However, if it encounters its original master, a special connection will still form. If you want to use it directly, the risk is too high."
Kikyo's previous warning was still fresh in his mind. Yet, the primordial beast in front of him suddenly split off a mass of dark crystals from its body. The dark energy fused with the bone blade, altering its original material structure.
"Now, you can try to control it."
Following the primordial beast's instructions, Shiraishi cut open a wound on his palm. The moment a large amount of blood dripped into the bone blade, it erupted with a blood-red light, and the previously purified weapon began to radiate vitality once again.
With Otsutsuki Ryushiki's chakra consciousness and power completely removed, this bone blade was now a pure weapon of slaughter. As the blood merged into the blade, Shiraishi utilized Inorganic Reincarnation to bind himself to the weapon.
Instantly, the bone blade underwent another transformation. Shiraishi embedded a small regeneration core into the hilt, turning it into a massive bone blade adorned with a glowing red gemstone.
"The blade shall be named, Fukurim!"
As Shiraishi gripped Fukurim with one hand, a quiet green flame ignited along the bone blade, while his Sword radiated golden lightning.
The blade and the sword merged their flows, weaving together a dazzling display of lightning and fire!
At the same time, the primordial beast in the darkness let out a wild laugh: "Hahaha! Human, you make me look forward to the future more and more."
"Right, I haven't told you my name yet."
As the dark crystals in front of him slowly descended, they transformed into a terrifying storm of energy.
"My name is Necrozma!"
Outside the lunar palace, Shiraishi walked out step by step with Fukurim on his back. Seeing the weapon on his back, Kikyo initially wanted to say something, but she quickly noticed an unsettling aura leaking from Shiraishi's body.
Drawing an arrow, Kikyo pulled back her longbow and pointed it coldly at Shiraishi. As a priestess, she had keenly detected a very powerful dark energy rising inside him.
"Kikyo..."
Looking at the helpless expression on Shiraishi's face, Kikyo spoke softly: "There is an unsettling aura on you."
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