Naruto: I am Uchiha Shirou

Under the torrential rain at the Valley of the End, a thick mist began to rise. Hidden in the distance, White Zetsu clung to a tree trunk, too cautious to approach. Even so, he was utterly stunned, his wide eyes fixed on the scene.

"Uchiha Shirou is trying to get himself killed... I must inform Lord Madara immediately!"

As the concealed White Zetsu hurriedly sent a message to Uchiha Madara, blood continued to flow relentlessly under the downpour above the Valley of the End.

"Damn it! Shirou! Stay still!"

With an angry roar, Tsunade's light brown eyes burned with determination. Her long, slender fingers clenched together as she struck down fiercely.

After two loud, crisp slaps, the weakened Shirou coughed up blood, his wide eyes filled with shock. Blood and saliva uncontrollably spilled from his mouth.

Even White Zetsu, observing from afar, stared in disbelief. Good grief! As expected of a descendent of the Senju—she just slapped him senselessly with two resounding slaps!

"Kushina, what are you standing there for?!"

Tsunade's furious shout snapped Kushina out of her daze. The bewildered Kushina, unsure of what to do, was quickly barked at again:

"I've already severed control of his jaw muscles with my chakra scalpel. Use your mouth! If he refuses to breathe properly, bite his tongue and transfer air to him directly! I refuse to let this guy die on my watch!"

Before Tsunade could finish her words, Kushina, understanding the only way to save Shirou, immediately bit her cheek and leaned in and mouth to mouth Shirou directly.

Sweet liquid flowed in large gulps. Shirou, his eyes wide open, felt his throat involuntarily move. He was utterly numb—his mouth had lost all control.

Worried about any excessive reactions, Tsunade quickly used her chakra scalpel again to disrupt the nerves in his arms and legs, leaving him completely immobile.

Shirou stared at Tsunade in disbelief. He had imagined countless scenarios, including those beyond his wildest expectations, but never this.

Who could have foreseen this script?

And the damage from those two slaps—who could endure that?

"The wound is starting to heal. Kushina, keep going. I'll assist with medical ninjutsu to accelerate the treatment."

In this desperate situation, Tsunade remained exceptionally calm. Though tears streamed down her face, her commands were firm and decisive.

"The fatal wound on his chest is stabilizing… Life signs are holding steady. Kushina, continue. I need to examine his body further…"

"Massive amounts of berserk cells are rampaging inside him, eroding his cells… His body's natural defenses are trying to counter the invasion. There's also another energy within him…"

While Tsunade continued assessing the situation with precision, the blood pooling beneath Shirou was absorbed into the ground. To everyone's shock, trees began sprouting rapidly from the earth.

Kushina gasped in astonishment as she witnessed this.

"Sister Tsunade… Is this… Wood Release?"

"Shut up! Kushina, your job is to keep treating him—and make sure this brat shuts his mouth!"

Tsunade's sharp reprimand snapped Kushina out of her shock. Tsunade had already pieced most of the situation together from the dying words Shirou had muttered earlier.

Just then, Kushina seemed to notice something unusual. Her wide eyes locked onto Shirou's abdomen, and she frantically gestured with her hands.

The skin on Shirou's abdomen was turning pale and showing faint signs of hardening. Tsunade's pupils contracted as she realized what was happening.

"Not good! His body is losing its ability to suppress the Wood Release cells. Kushina, prepare the sealing technique with me!"

"Kushina, use the Eight Trigrams Sealing Style. Let's do it together!"

Tsunade's cold, measured orders prompted both women to form hand seals in unison.

Despite being unable to speak due to her task, Kushina could still move her hands to form seals.

One was Tsunade, already at Kage-level strength. The other was Kushina, a Jinchuriki of the Nine-Tails and a sealing master from the Uzumaki clan.

Sealing Technique: Eight Trigrams Sealing Style!

With a powerful shout from Tsunade, their hands slammed onto Shirou's abdomen. The impact left him wide-eyed, with glittering tears forming at the corners of his eyes.

Tsunade! This is personal vengeance, isn't it?!

Black sealing patterns spread across Shirou's body like vines, the burning heat of the seals locking down the rampaging Wood Release energy within him.

"Eight Trigrams Sealing Style is a technique that seals away an opponent's chakra. The Wood Release cells inside you are forming a symbiotic relationship with your chakra...

"So this Wood Release chakra counts as a type of energy. And as I said, your body contains energy capable of suppressing Wood Release. By reducing its influence, you'll be able to regain control…"

Drenched in the torrential rain, Tsunade watched as the chaos within Shirou's body finally subsided. A faint smile crossed her face.

Finally! Success!

However, when she turned her head, she froze. Kushina, after completing the sealing technique, was still kissing Shirou, her eyes hazy and her movements… insistent.

Shirou's wide eyes screamed for help. His mouth was beyond his control, but his tongue muscles still worked. He tried to speak, but his mouth was blocked.

His tongue flailed wildly, trying to push away whatever was obstructing him, but Kushina refused to budge. She continued transferring healing energy into his body.

"Kushina, erase all traces of our actions here. We'll seal Shirou up and take him back to the village for further treatment."

Tsunade's cold gaze swept over the area, making White Zetsu retreat deeper into the trunk of the tree he was hiding in.

Hearing the command, Kushina finally pulled away. As their lips separated, two glistening strings of saliva stretched between them. She nodded quickly, replying:

"Yes, Sister Tsunade!"

The special abilities of the Uzumaki clan were rare but incredibly powerful. However, they drained an enormous amount of chakra.

After all, this ability to heal even fatal injuries—like regenerating lost organs—was akin to a self-healing gene.

The more severe the injuries, the more chakra consumed. For most Jonin-level members of the Uzumaki clan, their chakra reserves would be insufficient for such feats. But Kushina was no ordinary Uzumaki—she was the Jinchuriki of the Nine-Tails.

Years of suppressing the Nine-Tails' chakra had given her unfathomable reserves. And with only half of the Nine-Tails sealed within her, she had more than enough chakra to spare.

Others might run out of chakra. But not Kushina.

No—her chakra reserves could only be described as chakra-tonnage.

As the rain continued to pour, a barrage of ninjutsu obliterated all traces of their actions from the Valley of the End. Moments later, a pale face emerged from the rocky cliffside.

White Zetsu stared in astonishment at the bound and sealed Shirou, being carried away by Tsunade and Kushina.

"Did… did they save him? No, wait! Lord Madara left some of his clone cells with the Senju long ago. So does that mean…"

White Zetsu's goofy expression turned contemplative as he struggled to make sense of the situation. But ultimately, as a creature who didn't even understand the concept of defecation, he gave up.

"Better get back and inform Lord Madara. Uzumaki sensing abilities are terrifying—I don't want to risk being discovered…"

As the thick mist rose in the rain-soaked Valley of the End, no one could tell what had transpired.

Even the corpse left by Root agents had been destroyed. Another body that had fallen into the ancient waterfall had dissolved into blood mist—evidence of Tsunade's fists, which were powerful enough to shatter even the mighty Susano'o.

...

In a dark, unknown cave somewhere in the ninja world.

"Lord Madara, that's the situation. Uchiha Shirou discovered secret experiments on Wood Release being conducted by Konoha's Root. He infiltrated the site but fell into a trap, leading to the injection of Wood Release cells into his body…"

The solitary, aged figure of Uchiha Madara sat on a stone chair, listening to White Zetsu's report. His face shifted between light and dark expressions.

This plot!!!

Even Madara was momentarily dumbfounded. Something about this story felt strangely familiar. But after hearing everything, he snorted coldly.

"Foolish brat. Does he think dying will allow him to escape everything? The darkness of the ninja world will never disappear!"

Madara's tone was tinged with irritation. What a stubborn boy—if he died because of these Wood Release cells, Hashirama would never let him live it down in the afterlife.

White Zetsu tilted his head playfully. "Lord Madara, if your Uchiha Shirou manages to harness the power of Wood Release, won't that disrupt your plans?"

Upon hearing White Zetsu's words, Uchiha Madara let out a cold laugh.

"Are you talking about the Rinnegan? But the Rinnegan is not something his eyes can awaken!"

As the first person to awaken the Rinnegan after the Sage of Six Paths, Uchiha Madara understood the eye better than anyone. At this moment, he wore a proud and contemptuous smile.

"Previously, I had you leave Hashirama's descendant with a clone infused with his cells. It was to prepare for this. I thought it would take some more time, but given this recent twist of events, Tsunade might uncover some interesting secrets earlier than expected.

As for Shirou, with just his measly three-tomoe Sharingan, even if he awakens the Mangekyō, the fusion of Senju and Uchiha powers might indeed give rise to the all-encompassing power of creation. But unfortunately, his Mangekyō is still not strong enough!"

Saying this, Uchiha Madara shook his head, sighing regretfully.

"If only he had a close relative. It's a shame his potential will end here. With the power of the Mangekyō combined with Wood Release, at best, it will achieve a balance between yin and yang. At least his Mangekyō won't go blind, and he can freely use its abilities...

But to create the power of yin and yang necessary for the force of creation, it's not about quantity but quality."

Beneath Madara's calm demeanor was a trace of regret for Uchiha Shirou.

Uchiha Shirou, who resembled him so much and whom he had secretly nurtured, could awaken the Rinnegan, Madara would feel exhilarated.

Because on the path to peace, he would no longer be alone!

"Lord Madara, then what about Shirou and the descendant of the Senju?" White Zetsu asked in confusion.

For once, Uchiha Madara revealed a rare, excited smile.

"Heh heh... This time, Konoha is helping us. The union of Senju and Uchiha—I'm thrilled! Hahaha… Hashirama, I can already see your exceptional descendant bearing the Uchiha name! Uchiha Tsunade! Heh heh… Ahahaha… Hashirama, I'll make sure you witness it! And that annoying Tobirama too!"

Thinking about Hashirama, Uchiha Madara couldn't hide his excitement, especially when imagining Tobirama, the white-haired man he despised the most.

"Ahahaha… Just wait! I'll see Uchiha Tsunade giving birth to our Uchiha descendants, making that Second Hokage see with his own eyes that the Senju have withered away!

The most outstanding descendant of the Senju—Hashirama's granddaughter—will bear the Uchiha name. And their children will inherit the Uchiha bloodline and awaken the Sharingan!"

He imagined the union of Shirou and Tsunade, with Tsunade not carrying on the Senju name, but instead taking on the Uchiha name. Their children would surely have immense talent and awaken the Sharingan.

In his mind, the scene of Uchiha Tsunade, alongside two children with Sharingan activated, glaring at Hashirama and Tobirama, made Madara so excited that his face flushed, and he laughed uncontrollably. His upturned lips refused to lower.

"Ahahaha… Two kids wouldn't be enough! Ten! With Uchiha Tsunade's constitution, ten Uchiha descendants would be just right."

In the mountain cave, Madara's eerie laughter echoed endlessly, leaving the hidden White Zetsu utterly bewildered.

"What's the difference between two kids and ten? And is this something to get so excited about?"

...

In Konoha.

Inside the Senju Clan's secret research lab belonging to Tsunade.

Under the bright lights, various precision instruments flashed and beeped.

"Blood pressure is stable… injuries healed..."

"The abdominal cavity was infected by Wood Release cells after sustaining injuries..."

"Wood Release cells are stable under the sealing technique…"

Tsunade calmly examined the body, habitually reporting the data aloud. Beside her, Mikoto had already activated her Mangekyō Sharingan, staring intently at the figure lying on the research bed.

"Record this!"

"Yes, Lady Tsunade!"

Mikoto obediently noted everything down, pen in hand, while Shirou lay on the research bed, staring wide-eyed at the scene before him.

"I… I have something to say… huff... wait… wait… hiss..."

His stuttering words were accompanied by the sensation of glossy lips and a sweet liquid pouring into his body. Seeing this, Tsunade glared in annoyance.

"Kushina! That's enough! This brat's injuries are already stable!"

"Fwuah. Yes… Lady Tsunade."

Kushina lifted her head, revealing a tear-streaked face. She licked her lips as she replied.

"Shirou, if you disobey again, I'll suck your mouth hard next time."

Shirou, who had lost control of his mouth and had to rely on his tongue and throat to speak, mumbled incoherently.

However, the three women standing before him—drenched from the rain they had rushed through—paid him no heed.

Tsunade scoffed at him, Kushina ignored his pleas, and even the usually gentle Mikoto lowered her head, focusing on her notes.

"Mikoto, your Uchiha clan knows how to play. Always talking about pursuing power, calling the Uchiha evil and corrupt. Are you even going to care about that?"

Tsunade's sarcastic remarks elicited a meek nod from Mikoto. "I will listen to Lady Tsunade!"

"I listen to Sister Tsunade, too!"

Before being prompted, Kushina quickly chimed in, clearly trying to please her. Seeing this, Tsunade shot her a glare.

"Then why were you kissing him nonstop on the way here?"

Faced with Tsunade's glare, Kushina showed no embarrassment. Instead, she puffed out her chest and retorted, "I was just worried about Shirou!"

However, even as she said this, she didn't quite believe her own words. It was obvious she was putting on a brave front, her gaze nervously flicking to Mikoto.

Her actions earlier had felt like a thrilling act of rebellion—stealing kisses from Shirou right under Mikoto's nose.

"You two, enough! Did you complete what I ordered you to do?"

Tsunade huffed, sitting down in a chair nearby. Her soaked clothes clung to her, emphasizing her imposing figure. She glared at the two women.

Kushina quickly nodded. "Don't worry, Sister Tsunade! I cleaned up everything thoroughly. On the way back, we didn't leave a single trace. No one will know we left the village!"

After Kushina finished, Mikoto also confirmed with a firm nod.

"Lady Tsunade, before I came, I already informed the clan that Shirou would be training for a while."

Lying on the research bed, Shirou stared wide-eyed. You've thought of everything, haven't you?

After their reports, Tsunade turned to Shirou, a dangerous smile spreading across her face.