Naruto: Fire-Release system

Chapter 121: Awakening the Rinnegan!

A massive Tenseigan, formed from countless Byakugan, radiated dazzling golden light.

After observing it for a while, Uchiha Yi acted without hesitation.

He raised his hand and unleashed Void Devouring Flame at the Tenseigan.

The invisible fire spread like ink in water, rapidly engulfing the enormous Tenseigan, dimming its brilliance.

Unlike previous targets, this artifact represented a higher-tiered power of the ninja world. Devouring it wasn't as effortless as usual—it wasn't a case of "melting at first bite."

Even so, the process wasn't slow.

Within ten seconds, the massive Tenseigan began to shrink, its diameter decreasing by about half a meter.

At this pace, it would only take a few minutes to fully devour it.

---

"Patience is key," Yi thought as he stood by, watching the process.

Minutes later, the spot that once held the Tenseigan was empty. The giant orb had been entirely consumed by the Void Devouring Flame.

With a simple gesture, Yi recalled the flames to his body.

The power it had absorbed began surging through his body, merging with his own bloodline energy.

Anticipation flickered in Yi's mind as he waited to see what transformation this monumental energy would bring.

---

At the exact moment the Tenseigan disappeared, countless members of the Hyūga Clan back in the ninja world felt an inexplicable sorrow emanating from their Byakugan.

A strange, unprecedented sensation swept through the clan, leaving them uneasy.

Clan members flocked to their leader, Hiashi Hyūga, seeking answers.

Hiashi, who shared this unsettling feeling, could offer no explanation. He could only reassure his clan and keep their nerves in check.

However, his intuition told him that the moon held a secret tied to the Hyūga Clan—a connection he couldn't yet articulate.

"I must investigate," Hiashi resolved, making his way to the Hyūga archives.

---

Meanwhile, the fusion of Yi's bloodline with the Tenseigan's power took longer than expected.

Seven full days and nights passed before the process completed.

But the results were astonishing.

The Tenseigan, a culmination of the collective Byakugan power from the descendants of Ōtsutsuki Hamura, had undergone a qualitative transformation. It surpassed the Byakugan's limits to achieve a level equal to that of the Rinnegan.

The Tenseigan embodied unparalleled yin chakra, rivaling the yin power inherited by Indra Ōtsutsuki, the elder son of the Sage of Six Paths.

Now, all that power belonged to Yi.

---

When he opened his eyes, the transformation was evident.

The once solar-patterned Eternal Mangekyō Sharingan in his sockets had evolved into the purple rings of the Rinnegan.

An invisible yet overwhelming pressure radiated from him, stirring the air and scattering debris across the chamber.

Taking a moment to explore his newfound power, Yi grasped the basics of the Rinnegan's capabilities.

Five Chakra Nature Transformations: Mastery over all elemental chakra.

Yin-Yang Release: The ability to create, manipulate, and negate matter.

Six Paths Techniques: Access to the six core Rinnegan abilities.

Outer Path: Connection to the Gedo Statue (Demonic Statue of the Outer Path).

Yi even felt a faint link to the Gedo Statue, knowing he could summon it at will.

However, with the Gedo Statue still crucial to Obito and Black Zetsu's Moon Eye Plan, Yi had no intention of interfering—for now.

---

In addition to these foundational powers, Yi discovered a unique Rinnegan ability, exclusive to him: Rinne Absolute Realm.

Rinne Absolute Realm traps a target in an isolated space.

Within this realm, no spatial or temporal powers can penetrate or escape.

The only way out is for either the caster or the target to perish.

While inside, Yi's physical and chakra attributes are amplified twofold.

Defeating an opponent within this realm grants Yi half of their total strength.

Yi smirked. "This ability is the ultimate accelerator for growing stronger."

The icing on the cake was that once the target was ensnared, not even space-time or temporal abilities could break free.

---

Satisfied with his newfound strength, Yi reflected on another development: the Tenseigan's residual power had created an additional transformation.

A pair of Byakugan had awakened in his eyes, complementing his Rinnegan.

These Byakugan were of the purest form, surpassing the quality of any Hyūga Clan member.

While the Byakugan's utility paled in comparison to his other abilities, Yi acknowledged its value and welcomed the addition.

"Time to return."

Yi decided to leave the moon intact for now, planning to revisit it later for potential habitation or other purposes.

Using his Amaterasu Heat Vision, he traveled back to the ninja world, bypassing the need to locate the space-time passage.

---

Two seconds later

Yi descended into the Land of Iron.

Unbeknownst to him, significant events had unfolded during his time on the moon.

His shadow clone, deeming them unimportant, had refrained from notifying him.

Currently, the Five Kage Summit was being held in the Land of Iron, initiated by the Fourth Raikage, A.

---

The summit excluded the Rain Village, reflecting the Raikage's deep mistrust of both Uchiha Yi and the Rain.

To the Raikage, the Rain's association with the Akatsuki was undeniable, and involving them in discussions about countering the Akatsuki would be sheer folly.

This exclusion marked the start of a grand coalition among the Five Great Nations to oppose the Akatsuki's ambitions.

---

(Author's Note)

Some readers may question the plausibility of Yi awakening the Rinnegan by devouring Ōtsutsuki Toneri and the Tenseigan.

While it's commonly accepted that the Rinnegan emerges from the combination of Indra and Asura's chakra, we have examples like Ōtsutsuki Isshiki and Momoshiki, whose Rinnegan origins differ.

Considering this, it's entirely reasonable that consuming the Tenseigan's immense power enabled Yi to awaken his Rinnegan.