Naruto: I'm Sukuna's Jinchuriki [ R-18 ]

Chapter 4: Chapter 4



After a powerful collision, Uchiha Kagami quickly formed hand seals with a speed that shocked the instructor. The teacher's expression changed, and he shouted in panic:

"All students, disperse! Now!"

Kakashi's pupils narrowed sharply as he moved with equal speed to counter.

"Fire Style: Great Fireball Jutsu!"

"Earth Style: Earth Flow Wall!"

The Great Fireball Technique, an iconic ninjutsu passed down through generations of Uchiha, was one of their signatures. Everyone in the academy had heard of its power, and it was usually the first Fire Style jutsu learned by members of the clan.

Kakashi, recalling Obito's earlier warning that Kagami could use Fire Style, anticipated this move and began countering the moment Kagami formed seals.

A loud **boom** echoed as the raging fireball struck the earth wall.

Kakashi had made the correct response, but he had underestimated the sheer power behind Kagami's jutsu.

"It's too much!"

The instructor, realizing the danger, tried to intervene to protect Kakashi.

**Bang!**

The fire wave blasted through the earth wall with a deafening roar, but before it reached its target, Kakashi's body exploded into a puff of smoke. A charred piece of wood lay in his place—**Substitution Jutsu!**

Kagami's instincts kicked in. He spun sharply to intercept Kakashi, who emerged from the ground nearby.

**Clang!**

Their clash continued in a flurry of taijutsu, the sound of blows reverberating across the training grounds.

---

Observing from the Sidelines

"This… this is just like watching a real ninja battle," Obito muttered from the sidelines, his face pale with disbelief.

He felt conflicted.

As an Uchiha, Obito had grown up surrounded by talks of strength and supremacy. Yet, witnessing Kagami's prowess made him painfully aware of the chasm between their abilities.

"Don't be discouraged, Obito." Nohara Rin's gentle voice broke through his dark thoughts. She patted him on the shoulder, offering a smile. "You're already amazing. I believe you'll be a great ninja one day!"

"Rin… thank you!"

Her kind words and unwavering faith reignited Obito's determination. The gloom in his heart dispersed as quickly as it had come.

---

### The Finishing Move

"Earth Style: Earth Wave!"

The ground rippled like ocean waves under Kakashi's chakra, throwing Kagami off balance.

Kagami nimbly dodged each shift in the terrain, his movements fluid and confident. He smiled faintly.

"Of all the people I've faced under the age of ten, you're the strongest, Kakashi," Kagami admitted, his tone tinged with amusement.

"But I'm getting bored with this game."

With those words, his **Sharingan** blazed to life, the double tomoe pattern spinning ominously.

Kakashi froze as a surge of malevolent energy overwhelmed him. A vivid vision of an ocean of blood, filled with demonic apparitions, flooded his mind.

It was **Sharingan Genjutsu: Sukuna's Curse Edition**.

Even before the instructor could react, Kakashi's body went rigid, his consciousness trapped in the powerful illusion.

Kagami walked toward Kakashi, unsheathing the **Sode no Shirayuki**, his chakra-infused blade glinting in the sunlight.

"Enough! You've won, Kagami!" The instructor appeared between them, his palm firmly on Kagami's shoulder.

The teacher's voice trembled as he looked into Kagami's glowing scarlet eyes. He couldn't suppress the chill that ran down his spine.

---

### The Uchiha Legacy

Whispers spread like wildfire among the spectators.

"He has the Sharingan…"

"And not just one tomoe—double tomoe Sharingan! At five years old!"

The instructor's thoughts mirrored the students' astonishment. There were rumors of a prodigy in the Uchiha clan who awakened his Sharingan early, but to evolve it to this extent so soon? Terrifying!

Kagami's gaze swept across the crowd. His blood-red eyes silenced any remaining doubt about his strength.

"Remember this: Uchiha do not bow to anyone," Kagami declared with an air of superiority.

---

Reflections in the Hokage's Office

In the Hokage's office, the crystal ball displayed the aftermath of the duel. Sarutobi Hiruzen frowned, the smoke from his pipe swirling around him.

"This child needs proper guidance," he muttered to himself.

He summoned his secretary and asked, "What is Jiraiya doing now?"

"Training Minato Namikaze in the Forest of Death, Hokage-sama."

After a moment's consideration, Sarutobi decided against immediate action.

"Let him stay in the academy for now. Perhaps his peers can temper his personality. If not…" Sarutobi exhaled deeply. "We'll let Minato guide him."

Minato Namikaze was a beacon of unity and compassion. In the Third Hokage's eyes, he embodied the hope of bringing together even the most fragmented clans.

--- Inner Resolve

Unaware of the Hokage's thoughts, Kagami had returned to his usual quiet demeanor in class. His Sharingan had deactivated, and he appeared calm—almost too calm for someone who had just displayed such terrifying power.

Beneath the surface, Kagami's consciousness was hard at work.

Sitting cross-legged within his spiritual space, he concentrated on perfecting his mastery of the **Rasengan**.

"Spin, power, maintenance…" he whispered, each word corresponding to one of the Rasengan's development stages. He had nearly reached the third stage, but keeping the chakra stable remained a challenge.

Suddenly, Sukuna's voice echoed from the dark corners of Kagami's mind.

"Little brat… What's going on outside? And what's with those cursed eyes of yours?"

Kagami smirked, his focus unwavering.

"You felt that, didn't you? My Sharingan's genjutsu fused with your cursed energy. It worked perfectly."

Sukuna chuckled darkly. "You're playing a dangerous game, brat. Those eyes of yours… they'll either make you a king or get you killed."

Kagami's smile didn't falter. "If I die, then that's all I was worth. But I won't beg or grovel like you did to survive."

Sukuna growled, his tone laced with malice. "Careful, kid. Pride can shatter just as easily as bone."

But Kagami's confidence didn't waver. He stared into the abyss of Sukuna's presence and declared:

"One day, I'll break your leash and make you my tool. Mark my words, Sukuna. I am Uchiha Kagami."


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