Naruto: Becoming the Soul King

Several days passed in the blink of an eye.

Less than ten minutes remained before the solar eclipse.

Seiryū sat cross-legged atop the God Tree, fully prepared. As the Ten-Tails Jinchūriki, he shared a direct connection with the God Tree, allowing him to absorb the Chakra stored within it through that bond.

Many of the people closest to Seiryū had gathered to witness his breakthrough to Kekkei Mōra. The chance to personally observe someone ascend to that level was exceedingly rare, so naturally, everyone was curious.

Before long, the blazing sun was gradually obscured, and the light across the land began to fade. Although it was still midday, the sky steadily darkened.

”The time has come.”

At that moment, Seiryū opened his eyes and looked up at the sky, a smile appearing on his face.

”Then let’s begin the breakthrough to Kekkei Mōra.”

Seiryū slowly stood and exhaled. With a thought, he activated his connection with the God Tree and began drawing out the enormous amount of Chakra stored within it.

His control over Chakra far surpassed that of ordinary shinobi. Even without the Rinnegan, he could still absorb the God Tree’s vast reserves with ease.

As the immense Chakra poured into his body, the God Tree began visibly withering. At the same time, Seiryū pushed himself toward the Kekkei Mōra level.

’Hum, hum, hum...’

The torrent of Chakra was so overwhelming that the surrounding air seemed to solidify. Visible Chakra gathered around Seiryū and gradually formed a cocoon that completely enveloped him.

The very essence of his life began to change.

Under the constant influx of Chakra, his body seemed to undergo a form of assimilation. However, this was not harmful. Everything remained within Seiryū’s control.

The vast reserves of Chakra were continuously transformed into a higher-quality Power of All Creation, and it was this power that began altering Seiryū at the most fundamental level.

”As expected, reaching Kekkei Mōra requires enough high-quality Power of All Creation. The Chakra stored in the God Tree alone is already enough for me to complete the transformation.”

”But I can go further. There are differences in strength even among Kekkei Mōra-level beings, and the greater one’s Chakra reserves, the stronger one becomes.”

”Natural energy can also be used.”

Seiryū carefully sensed the immense Chakra filling his body.

His life level was already on the verge of a complete qualitative transformation. If he simply stopped restraining the process, he could ascend to Kekkei Mōra immediately.

But Seiryū did not intend to settle for that.

The solar eclipse was causing the natural energy throughout the world to rise dramatically, and he could absorb that as well.

He wanted to use this opportunity to go even further.

’Hum, hum, hum...’

Seiryū had long possessed the ability to absorb natural energy. As the eclipse reached its peak, he clearly sensed the natural energy between heaven and earth surging to an extraordinary level.

He did not fully understand the principle behind it, nor did he need to.

It was enough that the power could be used.

With a thought, Seiryū unleashed his Quincy abilities to their fullest extent.

An enormous amount of natural energy rushed frantically toward him.

Using the God Tree as an intermediary, Seiryū converted that natural energy into Chakra compatible with his own.

The God Tree itself possessed the ability to absorb natural energy. In a sense, natural energy represented the life force of the planet.

Everything had already been prepared.

’Hum!’

The Chakra cocoon grew thicker and denser until Seiryū disappeared completely within it.

Those present who possessed sensory abilities were left stunned by the sheer magnitude of the Chakra they could feel.

It was no longer something that could be described as merely vast.

It was like an ocean.

’Crack!’

The next moment, the Chakra cocoon shattered.

Countless particles of light scattered through the air, revealing Seiryū within.

His appearance had not changed. He was still just as handsome as before.

And yet, something about him had become fundamentally different.

An indescribable presence surrounded him, as though a deity had descended into the world.

”I am Kekkei Mōra, and I am the Soul King!”

Seiryū clenched his fist and felt the overwhelming power within his body.

A grin appeared on his face.

”The final mission is complete. Everything went surprisingly smoothly.”

He had finally reached Kekkei Mōra.

And with that, the system’s final mission should also have been completed.

Right on cue, the system notification sounded in his mind.

[Ding! Mission complete! Congratulations to the Host for attaining the status of Soul King! This system is deeply gratified. From the moment the Host obtained this system until now, less than a year has passed since the Host went from a student of Shin’ō Academy to the Soul King, ruler of the Three Realms! The Host is the most talented individual this system has ever encountered!]

Seiryū fell silent.

”...”

All right.

The system was still the same as ever.

Still completely unreliable.

But somehow, that felt very much like the system he knew.

’System, what happens now?’

Seiryū was still curious about its true nature.

Now that the final mission had been completed, would something new happen?

[This system is the ”Achieve Soul King System,” created to assist the Host in attaining the position of Soul King. Since the Host has successfully become the Soul King, this system’s mission is complete. It will now unbind from the Host and search for its next host!]

Seiryū raised an eyebrow.

’You’re going to unbind and find someone else?’

[Correct!]

’System, where did you come from?’

Seiryū had asked this question before, but the system had always remained silent.

He expected the same response this time.

Unexpectedly, it answered.

[This system is this system. It does not understand what the Host means by ”where did you come from.” Since the Host has already attained the position of Soul King, unbinding will now begin!]

[Ding! Unbinding successful!]

[Searching for the next host!]

[Ding! A qualified host candidate has been detected. This system is preparing to detach from the current Host...]

’Wait.’

Seiryū had not expected the system to abandon him so decisively.

He still had plenty of questions he wanted to ask, but the system completely ignored him.

The next moment, Seiryū felt as though something had disappeared from the depths of his soul.

At the same time, he clearly ”saw” a tiny speck of light separating from him.

[Goodbye, Host. This system will now begin its next mission. It has been a pleasure accompanying the Host for a millennium. Since the Host has now become the Soul King, please remember the responsibilities that come with that position!]

After leaving behind those final words, the system transformed into a speck of light and vanished.

Following the last faint connection between them, Seiryū vaguely saw a vast blue ocean.

The speck of light flew toward a black-haired boy and entered the center of his forehead.

[Ding! ”Achieve Kekkei Mōra System” loading!]

[This system will do everything in its power to assist the Host in attaining the position of Kekkei Mōra! As the future supreme existence of the shinobi world, the Host will use your strength to protect the peace of the shinobi world and resolve the suffering of its people!]

[Please refine Chakra as soon as possible to activate the system and begin your legendary journey toward becoming Kekkei Mōra!]

”Huh? A system?”

The black-haired boy was clearly stunned.

He looked at the pirates currently attacking the village in front of him, and confusion filled his face.

”Wait. Achieve Kekkei Mōra?”

”Did you make a mistake? This is the One Piece world!”

[Ding! This system has made no mistake. Please refine Chakra as soon as possible, Host!]

The black-haired boy stared blankly ahead.

”???”

That was the final scene Seiryū managed to see and hear before the connection disappeared completely.

The corner of his mouth twitched.

”...”

”You really are something, system.”

Seiryū had so many complaints that he did not even know where to begin.

Still, this was completely in character for the system.

It had messed up again.

”A new cycle, huh? Could there really be some kind of Space-Time Administration or System Realm behind all this?”

Seiryū thought for a moment before sighing.

”Do systems have performance targets too? That’s a little beyond me.”

”But whatever. Transmigrators having systems is normal enough.”

”Now that I’m here, I’ll simply continue living my life. None of the abilities I gained disappeared when the system left.”

Seiryū smiled.

”I am still Kekkei Mōra.”

”And I am still the Soul King.”

He no longer thought about the system.

He had already reached the pinnacle of this world.

(The End.)

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