The night was calm as still water, the bright moon hanging high above.
Moonlight, like a soft veil, draped over the woods. A gentle evening breeze rustled the foliage, whispering through the trees.
Izumi Uchiha stepped carefully over fallen leaves, hands clasped to her chest in nervousness, moving through the forest until she reached the edge of a cliff.
There stood Heiyan, his back turned to her. Beneath the moonlight, with arms folded behind him and eyes raised toward the heavens, he seemed cold and solitary—like a fallen celestial being, an exiled immortal from heaven.
"So you've come."
Heiyan turned around. His voice sounded distant, almost ethereal. Moonlight bathed his entire form, causing him to emit a faint glow.
"Master, I'd like to follow you and learn from your teachings."
Without hesitation, Izumi knelt before Heiyan and bowed deeply, accepting him as her mentor.
She had lost everything—her entire clan. Now left adrift like a rootless weed, there was nowhere else for her to go.
She had considered seeking revenge against Itachi at all costs. If she were to die during that attempt, perhaps it would be better than continuing to live.
But even if she succeeded, what difference would it make?
The dead would not return, and the rest of her life would be spent trapped in endless emptiness.
Izumi thought about this for a long time. She did not want to spend her life consumed by hatred and emptiness. Through Heiyan, she saw another possibility. After serious consideration, she made her decision.
"Very well."
Heiyan nodded, approached Izumi, and extended his hand to help her up.
Then, with a single-handed seal, Heiyan summoned a thundercloud beneath them, lifting both into the air.
Shoo.
Under the silver moonlight, master and disciple soared into the night sky.
One day later.
In the southern sea of the Land of Fire, Mikazuki Island.
In the original timeline, after the end of the Third Great Ninja War, several elite ninja from minor villages grew tired of conflict in the shinobi world and escaped to this island, establishing the Moon Ninja Village and the Country of Moon.
At this time, the Country of Moon was just beginning to develop, with large numbers of immigrants arriving each month, bringing many new faces to the island.
Therefore, Heiyan's and Izumi Uchiha's arrival attracted no attention whatsoever.
Heiyan took on the identity of a generous merchant and immediately purchased a villa along with a large beach at the rear of the island, turning it into their secluded training ground.
Inside the room.
Izumi sat upright in formal kneeling posture, spine straight, her expression tense and serious.
"Relax a little. Sit however feels comfortable. Sitting like that for too long might leave girls bow-legged."
After sitting down across from Izumi, Heiyan smiled and signaled for her to relax.
Hearing his words, Izumi adjusted her position to sit cross-legged instead. Under Heiyan's influence, she seemed more lively than before.
From their time together, Izumi's strongest impression was that Master Heiyan wasn't as aloof as he seemed—he was warm and approachable, more like an older brother than a distant mentor.
After a brief exchange, Heiyan got straight to the point:
"Now, I will tell you the complete truth about Madara Uchiha, Obito Uchiha, Itachi, and everything regarding the Uchiha Clan."
Then, he began recounting the history of the Uchiha Clan to Izumi, telling her everything step by step.
From the time of the Sage of Six Paths, through generations of conflict between Indra and Asura, Black Zetsu's secret manipulations, Madara's schemes during the legendary battle at the Valley of the End, Obito impersonating Madara across the world of shinobi, to the reason why Itachi carried out the Uchiha massacre—
Heiyan told all of this in detail to Izumi Uchiha.
After hearing it, Izumi was deeply shocked and sat dazed for what felt like ages.
It took her nearly half an hour before she could begin to process all the information. From Heiyan's account, she had uncovered a hidden and far more brutal truth buried deep beneath the shinobi world.
If these revelations were ever made public, they would shake the entire world and completely reshape the structure of the ninja realm.
Still, though she now understood the difficult circumstances behind Itachi's actions, Izumi could not accept what he did.
In her view, among all possible solutions, Itachi had chosen the very worst one.
After all, not every member of the Uchiha clan was guilty. Within the clan, there were many people who hadn't even awakened their eyes—individuals no different from ordinary villagers elsewhere, innocent civilians.
Yet Itachi slaughtered entire families: men, women, and children alike. It was nothing short of horrifying.
Without doubt, Itachi was a cruel executioner; no justification could ever absolve him.
At the same time, Izumi couldn't help but wonder—how could Master Heiyan know so much about the Uchiha clan's deepest secrets? Just who was he, exactly?
However, she knew better than to ask when Heiyan chose not to explain.
"Next, I'll teach you how to master your Mangekyou abilities. Follow me."
At this, Heiyan stood up and walked toward the door.
Upon hearing those words, Izumi's eyes lit up with joy. She quickly got up and followed right behind.
As a ninja, she naturally desired power. She had always trained relentlessly—if not, she wouldn't have awakened her triple-tomoe Sharingan by the age of thirteen.
She had already learned from Heiyan about the various powers of the Mangekyou Sharingan—such as Itachi's Amaterasu and Tsukuyomi, Obito's Kamui, Madara's Eternal Mangekyou Sharingan, and even the legendary Rinnegan.
Now, she longed to develop the full potential of her own eyes and become a powerful warrior who could stand alongside those figures.
Under Heiyan's careful guidance, Izumi Uchiha began a rigorous and fulfilling journey of cultivation.
Inside Izumi's pair of Mangekyous, two techniques took root.
The ability in her left eye was called [Dream Awakens], a genjutsu cast upon oneself. Its effect resembled that of Izanagi, although its time rewind capacity was much shorter—only ten seconds rather than a minute or longer.
Compared to Izanagi, this technique had the advantage of not blinding one eye per use. Instead, like other Dojutsu techniques, blindness occurred only after multiple uses and excessive strain on ocular power.
What made this jutsu truly terrifying was its behavior once Izumi awakened the Eternal Mangekyou.
Once she achieved that level, she would be able to freely employ [Dream Awakens]. That meant, unless she sustained a fatal injury for more than ten consecutive seconds, she would be virtually immortal and unstoppable.
The ability sealed within her right eye was named [Enter the Dream], a genjutsu that traps enemies.
When Izumi witnessed the slaughter of her entire clan and was betrayed by her former lover who pierced her with his blade, heart-wrenching grief and immeasurable despair gave birth to a Dojutsu that even surpassed Tsukuyomi in intensity.
Of course, aside from the distinct powers of each eye, she had also awakened the full might of Susanoo—a powerful Ninjutsu that could only be gradually mastered through extensive training and exploration.
Fortunately, Izumi had Heiyan guiding her as her mentor. Thanks to his teachings and her natural talent combined with relentless effort, she learned at an incredibly fast pace.
One month later.
At the beach, Izumi Uchiha stood on the sand wearing a white battle armor woven by Heiyan himself, its defense rivaling that of the Tailed Beast Cloak. However, he had not given Izumi any living armor, as he didn't want her relying too heavily on external protection.
Strapped across her back in a cross-shaped formation were two blades of the Sword of Kusanagi—the Murakumo Sword and the Tianbuliu Sword—gifted by Heiyan, giving her a commanding and valiant appearance.
[Haa!]
With a sharp cry, a thick, tangible wave of red chakra surged from Izumi's body, forming into a massive translucent Susanoo giant hovering above her.
This half-body Susanoo wore warrior armor, appearing imposing and exuding immense pressure.
However, what set it apart from other Susanoos was that Izumi's Susanoo had flowing long hair behind its head, and its facial features appeared softer—an image of a female war goddess.
[Daughter of Susanoo]
Swish! Swish!
The two Kusanagi swords resting on Izumi's back shimmered as chakra surged into them, transforming into colossal weapons that now hovered beside the Daughter of Susanoo.
Among them, the Murakumo Sword suddenly multiplied as if performing Shadow Clones, splitting into eight flying swords total. They formed a sword formation and floated around the female Susanoo.
Meanwhile, the Tianbuliu Sword transformed into a gleaming golden great katana, firmly gripped in both hands of the Daughter of Susanoo.
Boom.
Under Izumi's control, the Daughter of Susanoo stomped hard enough to leave a deep crater in the sand before propelling herself high into the air, leaping forward mid-air and bringing down a sweeping slash with her great katana.
During this movement, the blade quickly extended in length to over one hundred meters, slicing downward toward the sea with apocalyptic might.
Boom!
The previously calm horizon of the sea was instantly torn apart by the hundred-meter-long blade, creating a visible trench as seawater was forcefully parted by its overwhelming power—an awe-inspiring sight.
"Hmm, good."
Watching from not far away, Heiyan observed the spectacle with careful attention, acknowledging Izumi's remarkable progress throughout her recent training.
A sudden idea struck him—he would push Izumi to her absolute limits with a far greater challenge. He quickly formed a hand seal, summoning a gigantic meteorite over a hundred meters in diameter which suddenly appeared in the sky, crashing straight down toward the Daughter of Susanoo.
Izumi narrowed her eyes.
Calmly, she guided the eight whirling blades circling around her with practiced precision, launching them skyward in unison.
Zzzsh! Zzzsh! Zzzsh! Zzzsh!
The flying swords shot up in unison, converging their force at a single point before piercing directly into the center of the meteorite's underside, successfully destroying it from within.
Boom! Boom! Boom! Boom!
The meteorite shattered into countless fragments, raining down like a storm upon the ocean's surface and splashing up waves like blooming flowers.
Further away, several middle-aged men dressed in luxurious robes stood watching the Daughter of Susanoo on the sea with lingering fear on their faces.
These were the elite ninja who had founded this nation. Upon hearing the commotion from the beach, they had rushed over in panic, only to witness that shocking scene.
They were knowledgeable ninja who understood that the strength of that man and woman rivaled even a Kage-level shinobi—one of the most powerful fighters from any of the Five Great Ninja Villages.
Trembling with awe, they exchanged uneasy glances, too afraid to approach or interrupt. From afar, they could only observe with reverent gazes.
After a while, Izumi Uchiha deactivated her transformation into the Daughter of Susanoo and returned to the beach, walking toward Heiyan.
"Teacher, wasn't I amazing?"
She wore a slightly smug expression, looking forward to Heiyan's praise.
Over the past month, she had felt herself growing stronger every day. If she faced Izumi again now, she was confident she could decisively defeat him.
In the past, she trained hard merely to keep pace with her beloved Itachi.
Now, her vision had broadened—she strived toward entering a new world meant for the strong.
"Izumi Uchiha, your talent and dedication have exceeded my expectations," Heiyan said with a warm smile, genuinely praising her.
This girl, once an unlucky background character doomed to die young at Obito's hands in the original timeline, had, by chance, had all her hidden potential unlocked by Heiyan. At just thirteen years old, she had firmly reached Kage-level power.
At this moment, she had already surpassed Hashirama, Madara, and even Itachi during their teenage years, making her arguably the strongest young ninja in history.
Moreover, Heiyan had no intention of letting her stop here.
Thinking about it, he then said to Izumi:
"The potential of your Mangekyo Sharingan has been fully developed. It is time to push beyond even your current limits. So tell me—are you ready for your next step forward?"
"Yes!"
Izumi gave a firm, immediate nod, full of confidence.
As she looked at him with eager eyes, Heiyan pulled out a test tube filled with semi-transparent liquid—inside were clearly a pair of Mangekyou Sharingan eyes.
"This is..." Izumi's eyes widened instantly, filled with astonishment.
"These eyes belong to Fugaku Uchiha—the clan head of the Uchiha." With a slight smile, Heiyan explained his upcoming plan.
"But teacher, isn't it said that the Mangekyo can only be successfully fused if transplanted from a close blood relative? I don't share any blood ties with the clan head..."
Izumi expressed her confusion.
"Rules aren't set in stone."
Heiyan said with a patient smile as he shook his head.
"In reality, if one possesses sufficient ocular power, there's no need to progress through the stage of Eternal Mangekyo Sharingan at all. Take the Sage of Six Paths for example—he evolved directly from triple-tomoe to the Rinnegan.
Later descendants of the Sage of Six Paths' lineage—the Uchiha clan—suffered from weakened bloodlines and insufficient ocular power, which was why many Uchiha eventually lost their vision despite using the Sharingan."
"Actually, every member of the Uchiha clan inherits the same kekkei genkai. Even if there's some rejection during the transplant, with my guidance, you'll still successfully integrate these eyes."
"I see."
Izumi nodded thoughtfully, suddenly understanding.
Then, she excitedly asked Heiyan, "Teacher, when can we start?"
"Don't rush."
Heiyan held up a hand to calm her. "To increase the success rate of fusing both eyes, before starting the surgery I'll first transplant something similar to Hashirama cells into you. This will significantly enhance your physical capabilities, especially your recovery abilities."
Izumi's eyes lit up as soon as she heard that.
Now she understood: It was because Madara Uchiha obtained cellular tissue from the First Hokage that he was able to awaken the Rinnegan; Obito also relied on transplanted Hashirama cells to frequently use Kamui.
Hashirama cells were practically a legendary panacea in Chinese medicine—a true treasure for any Uchiha ninja.
Wait—is Teacher Heiyan holding Hashirama cells too?
Seeing Izumi's thoughts going in that direction, Heiyan smiled again and explained:
"The cells I'll give you don't come from the First Hokage—they're from my own body."
"What?"
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