Here's your revised chapter with improved grammar, flow, and readability while keeping the original meaning intact:
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**Chapter 69: Shinra Tensei!**
Carl hovered in midair, his entire body transformed into a swirling black hole. The massive waves rushing toward him spiraled into the darkness, vanishing within his form.
As the seawater was absorbed, his body suddenly erupted with a dazzling white light. A spherical barrier flickered into existence around him, its glow intensifying with each passing second.
The Whitebeard Pirates stared in shock.
"He absorbed all that seawater… What is he trying to do?"
"Isn't he a Devil Fruit user? Shouldn't he be weak against the sea?"
"Damn it! This Marine is up to something crazy again!"
From the bow of the Moby Dick, Whitebeard narrowed his eyes, observing the phenomenon with a thoughtful gaze.
Then, within the sphere of light, the immense gravitational force radiating from Carl abruptly ceased. He slowly opened his eyes and whispered:
**"Shinra Tensei."**
**Buzz!**
An invisible shockwave erupted from Carl, surging outward in all directions. In an instant, the seawater he had just absorbed was expelled violently, turning into a devastating force.
The sudden impact caught the Whitebeard Pirates off guard. Several ships were instantly blown away, tossed like ragdolls upon the raging sea. But more terrifying than the waves was the sheer repulsion force itself.
Under its pressure, every vessel—except for the Moby Dick—was reduced to splinters. The unfortunate pirates aboard them had their bodies crushed by the overwhelming force, their internal organs ruptured from the shock.
Even the Moby Dick, though spared total destruction, groaned under the strain. Cracks splintered across its hull as it was shoved back several miles, pushed far beyond the horizon. The Marine warships had vanished from sight.
At the bow, Whitebeard stood unmoving, his arm stretched out before him. He had coated himself in Haki to withstand the brunt of Shinra Tensei, shielding both himself and his crew. But even then, his fingers tingled from the lingering force.
Slowly lowering his arm, he exhaled and frowned, staring in the direction where the Marines had once been.
Marco rushed to his side, concern evident in his expression.
"Dad… Are you okay?"
The attack had left the Whitebeard Pirates devastated. Never in their history had they suffered such a catastrophic defeat.
Whitebeard shook his head, his voice low.
"Marco… Any word from the other ships?"
Marco hesitated before answering, his throat tightening.
"No, Dad. In that situation… I don't think they…"
He couldn't finish the sentence.
Whitebeard's face darkened with grief. He bowed his head in silence for a long moment before speaking again.
"That Marine brat… Carl, was it?"
Marco clenched his fists, his eyes burning with resentment.
"Yeah, Dad. I heard it on the warship—he's a student at the Marine Academy. And his Devil Fruit… it's the Dark-Dark Fruit, a Logia-type."
"A student…" Whitebeard murmured, his expression unreadable. "The Marines have recruited a real monster this time."
Before Marco could respond, a nurse burst from the cabin, her face pale with urgency.
"It's bad! Captain Oden has lost too much blood—his condition is critical! Marco, we need your ability, now!"
Both Whitebeard and Marco's expressions shifted. Without a second thought, Marco sprinted into the cabin, ignoring the pain in his injured shoulder.
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**Aboard the Marine Warship**
The radiant light in the sky faded, revealing Carl's silhouette. His face was pale, beads of sweat glistening on his forehead. It was clear that **Shinra Tensei** had drained a considerable amount of his strength.
The strain was so intense that he could no longer maintain his airborne state. His body plummeted toward the deck below.
Lucia reacted instantly. With a powerful flap of her black wings, she shot into the air and caught Carl in her arms before he could crash. Looking down at his exhausted expression, she felt a pang of concern.
"Young Master, you—"
Carl raised a finger to her lips, smiling faintly.
"You forgot to call me 'cousin' in front of others again." His voice was weak but teasing. "Don't worry. I'm fine. It was my first time using that move… I just overdid it a bit."
Taking a few deep breaths, his complexion slowly regained some color.
**White Hole Shinra Tensei.**
This was a technique Carl had devised long ago. With his knowledge from Earth, he knew of a celestial phenomenon called a **White Hole**—the theoretical opposite of a Black Hole.
A **Black Hole** devours everything. A **White Hole** expels everything.
By condensing his Dark-Dark Fruit's gravity to its absolute limit, Carl could create an effect similar to a **White Hole**, generating an immense repulsion force. This technique was his own version of **Shinra Tensei**, akin to a natural disaster.
Lucia gently lowered Carl onto the deck. His remarkable recovery abilities had already begun restoring his strength, but the crew was still in stunned silence, processing what they had just witnessed.
Even Akainu and Borsalino exchanged glances, uncharacteristically shaken.
*"Can we… even reach that level of power?"*
Zephyr, still trying to grasp what had happened, finally stepped forward.
"Carl," he asked cautiously, scanning him for injuries. "How are you feeling? I saw you lose your strength for a moment."
Carl sighed. "Yeah… I miscalculated the output. If I did it again right now, I'd probably pass out completely."
Zephyr's expression froze.
"Nani? You mean… you could do it again?"
Carl raised an eyebrow, suddenly suspicious. "Wait… are you thinking of sending me after Whitebeard *again*?"
"Not exactly," Zephyr muttered. "But this performance of yours… I don't even know how to report it to Fleet Admiral Sengoku."
Carl shrugged. "I just did what had to be done. Besides, it wasn't just me—Sakazuki, Borsalino, and the others played key roles. We wouldn't have defeated Kozuki Oden without teamwork."
His words were sincere.
Before he had transformed, **Akainu and Borsalino** had provided crucial support. **Kuma** had helped distract Whitebeard's forces. Every Marine had contributed to this victory.
But even so—none of them could deny it.
Carl had changed the course of this battle.
And somewhere across the sea, Whitebeard stood at the bow of his ship, his eyes narrowed, his heart heavy with loss.
But there was one thing he knew for certain.
**This war with the Marines… wasn't over.**
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This version improves readability, pacing, and emotional impact while keeping the meaning intact. Let me know if you'd like any tweaks!