One Piece: My Crew is from Other World

According to Enel's information, the moon was once known as the Infinite Continent—a limitless land beyond the sky. If that was true, then it made perfect sense that something like the Infinity Stones originated from outer space.

Back when Enel first mentioned the Infinite Continent, Ryuunosuke had questioned him.

The answer was vague but telling.

Enel believed that reaching the Infinite Continent would offer new opportunities, perhaps even unlock untapped strength. A new realm of growth. Of course, Ryuunosuke had chalked it up to Enel's wild imagination—he was a self-proclaimed god, after all.

After being defeated by Luffy, Enel had fled to the sky and within a short time, proclaimed himself the ruler of the Infinite Continent.

If a guy like Enel could conquer it that easily, then its threats probably weren't all that formidable.

So Ryuunosuke hadn't paid much attention.

But now… things had changed.

After everything he'd discovered about the Infinity Stones, the rhythm beneath the earth, the strange energy signatures—he was beginning to wonder.

What really lies beyond this world?

Ryuunosuke shook his head.

No. That was a question for later.

Right now, he needed to focus.

As he moved deeper into the crater beneath Shimotsuki Village, he passed a large, marked stone slab—an indicator that he had entered the unmined zone. Koshiro and his people had long exhausted the outer areas, but the core remained largely untouched.

"Buzz—"

Ryuunosuke suddenly staggered as a wave of energy surged from the ground, coursing through his feet and into his body.

His Haki flared instinctively, and he wrapped himself in Armament to resist—but it was useless. The energy flowed through his defenses like water through fingers.

And then... it stopped.

He exhaled slowly, checking himself.

No injuries. No pain. No change.

Whatever that energy was, it had simply passed through him.

It seemed this place truly could awaken something within a person. Yet oddly, nothing had been triggered in him.

"…Maybe I'm just maxed out already," he muttered, half-joking to himself.

He raised the stone probe Koshiro had given him and plunged it into the soil.

The rod trembled and absorbed the ambient energy. Within a meter radius, two points pulsed faintly.

Ryuunosuke reached into the earth and pulled out a single Infinity Stone—smooth, dense, and glowing faintly with internal light.

He had handled these stones before.

But this was the first time he had ever mined one.

The sensation was strangely fulfilling.

He turned to leave—but then paused.

Thump… thump…

A rhythmic sound reached his senses.

…Heartbeat?

He stood still, scanning the area with Observation Haki.

Shimotsuki Koshiro remained outside, calm and unbothered. Either he didn't sense it… or it wasn't something he could perceive at all.

I should check it out.

Ryuunosuke followed the pulsing rhythm, descending into the core of the crater.

The energy grew thicker, heavier with every step.

No stone. No visible object. Just deep, spiraling pressure and the memory of something ancient.

Still… if there had ever been a meteorite core here, wouldn't someone have claimed it by now?

Then again, destiny had a habit of leaving gifts for people like him.

People from another world. With systems.

Thump, thump…

Thump, thump…

The rhythm accelerated.

Ryuunosuke narrowed his eyes and rammed the stone probe into the ground.

CRACK!

The rod shattered instantly.

"What—!?"

Even Ryuunosuke was surprised.

That probe was designed to channel the energy of Infinity Stones. For it to explode on contact meant something below had reached a level far beyond what they had ever encountered.

No hesitation.

He dropped to his knees and began to dig—bare-handed.

The soil felt denser than normal. Each handful peeled back layers of time.

And then—

There it was.

A white, spherical stone, unlike the fractured shards scattered nearby. This was smooth, dense, and warm—alive with pulsing light.

The surrounding shards felt like dust compared to this perfect core.

Ryuunosuke reached out.

The moment his fingers touched it—

"Ding! Congratulations to the host for obtaining the Heart of Eternity."

"Reward: +10,000 Reputation Points, Active Ship Spirit Unlocked, Glory Aura Gained."

His eyes widened.

The Heart of Eternity?

That was a name loaded with meaning.

He quickly pulled open his system panel. Sure enough, the new item had been added to his inventory.

[Heart of Eternity] – Classification: Unknown

Description: ——

"…No data?" Ryuunosuke muttered. "Even the system doesn't know?"

That alone was a sign of how rare this object was.

He glanced again at the rewards. All of them were tied to ships.

Could it be… that this thing enhanced vessels?

He clenched his fist around it.

Should I test it on the Ship of the Gods later?

While deep in thought, a glimmer in the corner of his eye caught his attention.

A stone tablet, partially buried nearby.

Unlike the marker slabs Koshiro's men used, this one was ancient. The carvings etched into its surface didn't resemble any language Ryuunosuke recognized.

It looked like the Poneglyph script—but different. Cruder. Older.

He pulled at it.

What he thought was a small plaque turned out to be a massive slab, over twice his height. And oddly heavy—even for someone of his strength.

"…This isn't normal."

Ryuunosuke had enough power to lift chunks of island. For this slab to feel heavy… it had to be infused with some kind of pressure. Or perhaps an enchantment.

He stored it in his system's inventory for now.

The heartbeat had vanished the moment he retrieved the Heart of Eternity.

Naturally.

It was a heart, after all.

---

Back outside, Shimotsuki Koshiro stood waiting patiently.

When Ryuunosuke emerged from the pit, the swordsman's eyes sharpened.

"You found something?"

"A big harvest," Ryuunosuke replied, brushing dust off his coat. "But we've got other business now."

"I won't stay in Shimotsuki Village much longer."

Koshiro nodded, but said nothing.

Ryuunosuke continued.

"About the conflict with Kaido… and the Shimotsuki clan…"

"I know," Koshiro interrupted. "Kuina already explained everything."

He turned to face the distant horizon, arms folded behind his back.

"Our clan—our village—we are swordsmiths now. Not warriors. Not samurai of Wano."

"We made our peace with that a long time ago."

"Whatever happens in Wano… let it happen without us."

His voice was calm, almost indifferent.

But Ryuunosuke could feel it—resolve, not apathy.

Peace wasn't cowardice. It was a choice.

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