Dual Kamui from the Start, One Piece World, Here I Come!

He opened his eyes.

"...Hm?"

The young man propped himself up and slowly sat upright.

He looked around the somewhat shabby, unfamiliar room, then at the little blanket covering him.

He froze for a moment.

"Wait, I'm already in the next world?"

"Isn't this a little too hasty?"

He could not help falling into thought. "I thought there might still be a way to save myself... Was I overthinking it?"

The young man stared blankly ahead, then let out a long sigh.

If he had known his ending would be such a careless death, he should have married and had children earlier, leaving behind a few seeds in that other world.

But now look at this.

He was dead, yet there was no one to inherit his legacy.

...Wouldn't that mean it all went to benefit those two idiots, Hashirama and Madara?

At that thought, the young man suddenly caught his breath, an inexplicable ache filling his chest.

The young man's original name was Li Mingyuan. Male.

Twenty-four years old.

A transmigrator.

So far, this was already the second world he had transmigrated into.

As a rookie transmigrator, in the previous Naruto world, he had exhausted every effort to complete the system's sole designated main quest. In return, he had earned the right to restore his body to the state it had been in when he first transmigrated after death, as well as the right to transmigrate into the next world.

However, because it had been Li Mingyuan's first transmigration, he had not possessed any enhancements. Worse still, he had arrived in the Warring States period. To complete the quest, he had done quite a few outrageous things.

The result was that although he had completed the main quest, his body had also been completely burned out.

A few years after retiring, he had suddenly collapsed in his study from angina.

And passed away.

Li Mingyuan pondered the events of his previous life for quite a while before finally coming back to himself.

"Forget it. There's no point worrying about what comes after now."

"If it's Hashirama and Madara, there shouldn't be any problem leaving it to them, right? With all the 'spoilers' I left behind, as long as they still remember to present a united front to the outside world, the country shouldn't collapse before their lifespans run out. At the very least, they should be able to unify it."

Li Mingyuan shook his head with a laugh.

He was completely dead. Even Impure World Reincarnation could not bring him back. Why was he still thinking so much about his previous life?

Future generations would have their own fortunes.

This life of his would likewise begin anew.

"That said, my body really has been restored to how it was when I first transmigrated."

Li Mingyuan curiously touched his body, visibly astonished. "It's even my healthy body... This is wonderful. I never thought I'd get the chance to return to this body."

"I only barely muddled through the system quest on paper. I thought there was no way I'd pass the evaluation. Are the standards really this lenient?"

Suddenly, Li Mingyuan slapped his forehead.

Right, he had almost forgotten the important part. He had not claimed the quest reward yet.

"System! Quest tab."

Li Mingyuan hurriedly called out.

The next second, a dialog box unfolded within his field of vision.

[World Conquest System 3.0 Closed Beta]

Quest Tab:

1. Naruto/NARUTO - Naruto - (Completed)

2. One Piece/ONE PIECE (In Progress)

Looking at the familiar and simple system interface before him, as well as the huge word "Completed" behind the Naruto quest, Li Mingyuan could barely suppress the excitement in his heart.

"Open quest tab one."

He spoke aloud.

[World Conquest System 3.0 Closed Beta]

1. Naruto:

Main Quest: Unify the ninja world and establish your own new regime.

Quest Description: In the vast chaos of war, blood flows like rivers. Since the ancient era of the Ninja Sect, conflict has never ceased. By this Warring States period, the world has become a living hell. Children fight and kill, nine out of ten homes lie empty, and true peace has never existed. Legend says that a Child of Prophecy will bring change to the world. However, as a transmigrator, you already know that in the end, nothing in the story ever truly changed. Since that is the case, as a visitor from another world, will you bring new change to this world?

Quest Status: Completed.

Quest Completion Rating: B-rank.

Quest Rewards:

1. One Naruto world rating reward exchange. (Unclaimed)

2. Restore physical body upon death and transmigrate to the next world. (Claimed)

In an instant, the interface before Li Mingyuan changed, and a large amount of text filled his vision.

Looking at the page he had browsed countless times before, along with the quest status and completion rating that had now appeared, Li Mingyuan felt his hands trembling involuntarily.

During those countless days of blood and darkness, he could not remember how many times he had checked the quest rewards, lingering again and again over the options he desired. They had been his greatest source of support when gritting his teeth and enduring it all.

But looking at the B-rank quest rating now, Li Mingyuan was somewhat stunned.

"It's actually B-rank..."

"I thought D-rank would already be pushing it. I never expected a B."

Li Mingyuan muttered.

Although he had no idea why his unification, which had only existed in name, could receive such a high evaluation, if it was a B-rank reward...

Recalling the reward list he had browsed countless times, Li Mingyuan's eyes lit up.

He scarcely needed a moment to think before deciding on the reward he would exchange for.

Mangekyō Sharingan: Kamui!

This was the ability he had looked at countless times while browsing the reward list, and the one he had coveted most.

The left eye leaned toward offense, while the right eye leaned toward defense. Yet either eye could transfer any object back and forth between reality and a different dimension. It was an extremely advanced space-time ninjutsu.

It could be considered one of the most outrageously broken ultimate abilities in the Naruto world!

Just how powerful was this ability?

Put simply, it offered survival, invincibility, mobility, burst damage, and super armor.

If the left eye's aim was precise enough, it could even add instant kills to that list.

Kamui was so overpowered that throughout almost all of Naruto, it had appeared only as single-eye Kamui. Only near the ending had the author allowed Dual Kamui to appear once, before immediately taking it permanently off the board.

Among Mangekyō Sharingan ocular techniques of the same level, almost no ability remained useful after Naruto's combat power inflated to the Six Paths level. Yet Kamui not only remained useful, it shone even more brightly.

There was no helping it. The ability was simply too strong.

Even single-eye Kamui was already nearly unmatched in Naruto. If Dual Kamui had been assembled from the start, not only would its ocular power increase, it could even unlock the third ocular technique, Susanoo.

And now, with merely a B-rank evaluation, he could start with Dual Kamui.

Li Mingyuan could not find any reason to exchange for another ability.

"Normally, what can a B-rank reward exchange for? Eternal Mangekyō Sharingan is at least A-rank. Things like Kekkei Mōra and Rinnegan are at least S-rank. As for higher things like divine techniques or special Rinnegan, those start at SS-rank."

"With merely a B-rank evaluation, even exchanging for inferior Hashirama Cells would be difficult. A Sage Body is completely out of the question. Being able to exchange for a Mangekyō Sharingan that could blind you at any time would already be very good."

"Yet Kamui, despite being just as powerful, happens to be nothing more than an ordinary pair of Mangekyō Sharingan!"

It was just within the exchangeable range!

At that thought, Li Mingyuan no longer hesitated.

Looking at the completed quest prompt, he immediately reached out and tapped the quest reward option.

"Exchange complete!"

With a smile on his face, Li Mingyuan let out a satisfied sigh of relief.

Then, he instantly noticed that something had changed within his body.

He could feel a special energy suddenly appearing inside his formerly empty body, which had been no different from that of an ordinary person. In an instant, it filled him, concentrating around his eyes.

Li Mingyuan knew the name of that mysterious energy.

Chakra!

It seemed the system's reward exchange did not merely grant abilities. It also provided the corresponding power system. That was quite nice.

Li Mingyuan clenched his fists and nodded to himself.

Normally, whichever world he entered, he would adapt to that world's rules and develop the corresponding constitution, so he would not die from incompatibility.

However, the constitution granted by that adaptation was not particularly strong.

Before he had modified his body in the previous world, his potential had only been at the level of a Chunin. Moreover, the changes from those world-compatible constitutions would not carry over into the next world he transmigrated into.

If he had continued without exchanging rewards in the One Piece world, his body probably would never have been able to produce chakra.

Now that he had exchanged for [Mangekyō Sharingan: Kamui], Li Mingyuan had regained chakra.

Even if the system did not allow him to exploit loopholes and prevented that chakra from using any techniques other than Sharingan abilities, the chakra itself was enough to greatly enhance his physical constitution.

At the very least, it should be much stronger than the default peasant-level body provided by compatibility in the One Piece world.

"Fuuu..."

Having completed the urgent reward exchange and confirmed the situation, Li Mingyuan visibly relaxed and became much more composed.

At this moment, he was in no hurry to test his Mangekyō abilities.

Instead, he turned his head and began examining the information he had overlooked earlier.

The main quest of the One Piece world.

"System, open quest tab two."

Li Mingyuan spoke again.

2. One Piece/ONE PIECE

Main Quest: Overthrow the old vested interests and establish your own new regime.

Quest Description: Slavery? Slavery! This is the natural development of a world with extraordinary powers. The development of systems always depends solely on the thoughts of those at the top. Countless people suffer persecution and oppression, yet if they want to resist, they can only hope for a strong person who shares their ideals to lead them. No matter how many weak people gather together, they still cannot shake the world's strength in the slightest. And now, as a visitor from another world, you have come to this world. Something stirs within your heart. Will you join them and become one of those who enjoy its privileges? Or will you build a new world that is at least slightly more progressive? Everything depends on a single thought from you.

Quest Status: In Progress.

Quest Rewards:

1. One One Piece world rating reward exchange. (Open to view reward list)

2. Restore physical body upon death and transmigrate to the next world.

Having sorted out the gifts of the past, the next step was naturally to confirm the future.

At the very least, he had to know what he would be doing from now on.

Li Mingyuan scanned the One Piece page in the system quest tab and confirmed the information.

Just as expected, it was somewhat troublesome.

"Hm... Just as expected, I still have to establish my own new regime."

"However, unlike the previous world, which had been at war for years, this world has the powerful regime known as the World Government. In the last world, many people did not resist forming a new order at all. On the contrary, they all wanted peace restored as quickly as possible. My main task was practically half complete as soon as I successfully won over Hashirama and Madara."

"But in this world, if I want to establish a new regime, I'll have to directly challenge the World Government. The difficulty has risen quite a bit... Or should I join them if I can't beat them? Maybe I should see if there's a way to become a Celestial Dragon instead?"

Li Mingyuan's expression turned troubled.

He had long anticipated the sort of quest the system might issue. The words "World Conquest System" were right there, and he was not blind. Using the Naruto world quest as a reference, he had more or less guessed what would come next.

That said.

When Li Mingyuan actually saw that the One Piece world's quest required him to establish a new regime, he truly could not feel happy about it.

The power of Kamui was formidable, but that did not mean he could act without restraint.

After all, excessive use of the Mangekyō Sharingan would blind him.

That was the greatest restriction of those eyes. It could also be called the hidden weakness behind their invincibility. Without the support of Hashirama Cells, the Mangekyō Sharingan had an extremely limited lifespan. If he used it recklessly, not only would he lose this invincible power, but both of his eyes would permanently lose their light, leaving him completely blind.

And yet.

If he remembered correctly, this world had no shortage of top-tier powerhouses comparable to Kage-level fighters, or even stronger.

Powerful Observation Haki combined with formidable Devil Fruit abilities meant that even people who could keep up with the speed of his Kamui, like Flying Thunder God: Second Stage, would not be surprising. There were the Glint-Glint Fruit, the Rumble-Rumble Fruit, and even spatial movement abilities similar to the Door-Door Fruit and Op-Op Fruit.

Moreover, compared with the fragile fighters of the Naruto world, battling the monsters of this world meant taking their powerful vitality into account. Other than Kamui's spatial tearing, which could guarantee a kill, even stabbing them through with a blade a dozen times might not ensure their deaths.

If he wanted to establish a new regime, could he really complete the quest before going blind?

He did not have much emotional attachment to the slaves of this world. In the end, he was merely a passerby who would leave once he died. There was no real need to directly confront the World Government.

But the World Government's Celestial Dragons had disgusted him when he read the manga, and he did not want to become their lackey either.

...What exactly should he do?

Just as Li Mingyuan fell silent, considering the new quest.

"Hm?"

Suddenly, the ground seemed to tremble.

BOOM!!!

The next second, a massive explosion erupted outside the window.

Li Mingyuan instinctively rolled off the bed.

"What the hell was that?"

He crouched by the windowsill and cautiously surveyed the surrounding area.

But only then did Li Mingyuan suddenly realize something.