Chapter 235: Ancient Weapons
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"A year ago, after I returned from Skypiea to the Blue Sea, I began paying attention to any news related to Fish-Man Island," Ace said calmly. "Through the intelligence I gathered, I learned that your daughter—Princess Shirahoshi—seemed to possess a certain unique power."
"I sorted through the information, compared it with the contents recorded on the Skypiea Poneglyph, and formed a bold hypothesis."
Ace's expression sharpened.
"I suspect that your daughter, King Neptune—Princess Shirahoshi—is the Ancient Weapon recorded on that Poneglyph… Poseidon."
He let the words sink in.
"Originally, I wasn't certain. But after seeing how nervous you became just now, I can basically confirm it."
Ace's gaze hardened slightly.
"The Ancient Weapon known as Poseidon is not just on Fish-Man Island… it is your daughter, Shirahoshi."
"Am I correct, Your Majesty Neptune?"
These lines, made up on the spot, were shockingly seamless—Ace had woven them together so convincingly that there were barely any flaws.
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Neptune closed his eyes and let out a long sigh.
"…Since Sir Ace has already reached this point, I have nothing left to hide."
He looked at Ace, his expression filled with both sorrow and fatherly affection.
"Yes. My daughter Shirahoshi is the legendary Ancient Weapon… Poseidon."
"In the royal bloodline of the Ryugu Kingdom, every several centuries, a special 'Mermaid Princess' is born—one who can communicate with and command the great Sea Kings. Shirahoshi is the Mermaid Princess of this era. That title, passed down through generations, is another name for Poseidon."
"Even before she was born, Madam Shyarly—back then still just 'Little Shyarly'—prophesied I would have a daughter. And long before her birth, the royal family already foresaw the coming of a child with that ability. As Shirahoshi grew, her talent manifested multiple times… I confirmed her identity long ago."
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"If this information were to leak out, the World Government… and every ambitious monster in the world… would descend on Fish-Man Island instantly," Neptune said bitterly.
"With Shirahoshi's gentle nature, she would never use that power to harm anyone. But I—" Neptune clenched his fists— "I do not have the strength to protect her."
"So…"
Neptune suddenly dropped to his knees.
"Your Excellency Fire Emperor! Please… I beg you… keep this a secret. Do not let this news spread!"
He bowed deeply, pressing his forehead to the floor.
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"You don't need to do that, King Neptune."
Ace immediately stepped forward and helped him up.
"Honestly, I'm not interested in Ancient Weapons themselves. I only want to meet Princess Shirahoshi to see what's special about the legendary Poseidon. I have no intention of using her or her power."
"Ancient Weapons are said to have the power to destroy the world. If someone learns of their existence, of course they'd want to see them." Ace smiled lightly. "But you don't need to worry about me spreading this."
"Forget being Uncle Whitebeard's friend… our crews—your Ryugu Kingdom and my pirate forces—are practically allied at this point, aren't we?"
Neptune's eyes widened with gratitude.
"Thank you… truly."
He stood tall, lifted the great trident in his hand, and proclaimed:
"I, Neptune, King of the Ryugu Kingdom, swear this: as long as I draw breath, our kingdom shall remain your most loyal ally!"
He wasn't exaggerating. Neptune knew Whitebeard's condition. He knew the state of the Whitebeard Pirates.
The moment Whitebeard fell, the crew would lose its center.
Fish-Man Island—protected under Whitebeard's flag—would instantly be exposed to chaos.
But Ace… Ace was the one Whitebeard had chosen.
A monster with explosive potential, growing at terrifying speed.
Someone who could someday surpass even the old man.
Someone who could protect Fish-Man Island the same way Whitebeard once did.
To Neptune, Ace represented security. The future. Hope.
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"There's no need for oaths, Your Majesty," Ace said lightly. "There's another reason I want to meet Shirahoshi. You know, ancient weapons come in three forms, right?"
"Indeed," Neptune nodded. "I've heard legends of three weapons bearing the title of 'God': Uranus, Poseidon, and Pluton."
"That's right," Ace replied. "From what I've learned, the whereabouts of Pluton have been guarded by the Nefertari Family in Alabasta for generations. It's said to be a massive warship capable of sinking islands."
"Poseidon," he continued, "is your daughter Shirahoshi—once her abilities fully awaken, she can communicate with and command the Sea Kings."
"As for the last one—Uranus—I know nothing. No form, no nature of its power, no clues. Nothing."
Ace's eyes narrowed with determination.
"So the real reason I want to meet Princess Shirahoshi… is to see if I can find any clues about Uranus through her."
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"I understand," Neptune said, nodding with a grave expression. "In that case, please come with me, Lord Ace."
"I will take you to see my daughter—Princess Shirahoshi."
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