Vander Decken IX laughed like a madman.
"You all know how this power works. Once I activate it, nothing can stop it. That giant ship—just as massive as Fishman Island—will charge straight at Princess Shirahoshi without fail. And when that happens…"
"Neither Ryugu Palace nor the Hard Shell Tower will stand a chance!"
King Neptune and Jinbe were both stunned.
"Y-You bastard…!"
"No way. A ship that huge? Even with your ability, that's—"
Vander Decken grinned wickedly.
"Jinbe, wanna try and stop it?! But when it hits, it won't just be Shirahoshi. The entire Ryugu Palace—no, all of Fishman Island—will be wiped out!"
He wasn't bluffing. If Noah really struck the island, total destruction was guaranteed.
In that moment, everyone was filled with rage—but there was nothing they could do.
Except Chiyu, who calmly said:
"Then I'll just kill you."
Vander Decken's expression shifted.
"Tch. Uchiha Chiyu, the so-called 'God of Slaughter.'
But too bad—even if you kill me, the moment my ability was triggered, Noah locked onto its target.
It'll keep going, no matter what."
"Unless…"
"You can physically stop the entire Noah."
"But that's impossible. The thing weighs more than several mountains. No outside force can stop it."
Franky couldn't hold back.
"You damn coward!"
"You're using your power to hurt people—and now you're gonna destroy a priceless ancient ship?! You're disgusting!"
To a shipwright like Franky, that was an unforgivable crime.
Jinbe looked at Chiyu.
"Chiyu-sama, what do we do?
That lunatic might actually be telling the truth…"
Chiyu didn't say a word.
He just raised one arm.
Then—
BOOM.
CRACK-BOOM!!!
A massive bolt of lightning erupted from deep beneath the ocean, pierced through the seawater, and slammed into Vander Decken's head.
It happened in a flash—literally. The thunder, the flash of light—by the time anyone could react, Vander Decken was already toast, fried to a crisp and blown clean off Noah.
Just like that, he was dead.
But…
His power had already activated.
Noah, the ancient ark that had slept for centuries, suddenly let out a deep, groaning roar. Like a sea monster waking from hibernation, the ship stirred and slowly began to move.
Jinbe's eyes widened.
"Chiyu-sama! That was incredible… but Noah really is moving!"
Neptune's face went pale.
"Everyone—give it everything you've got! We must stop Noah before it hits the island!"
"Yes, Your Majesty!"
Neptune, his three sons, and the entire royal guard charged at the ark, doing everything they could to hold it back.
But trying to stop Noah by force was like trying to stop a landslide with bare hands.
Jinbe also rushed forward, yelling as he joined the effort.
Chiyu, still calm as ever, simply said:
"It's no use. None of you have the strength to stop Noah."
"Then what do we do?!" Neptune cried.
Chiyu answered:
"Vander Decken wasn't obsessed with Shirahoshi just because she's beautiful… was he, King Neptune?"
The king's heart skipped a beat. He realized what Chiyu meant.
"You… you mean that power…
But how could you possibly know—?"
Jinbe spoke softly:
"Your Majesty… everyone knows Chiyu sees everything. No point hiding it from him."
Neptune was silent for a long moment. Then he sighed and nodded.
"You're right.
Chiyu-sama… the power hidden in Shirahoshi has been passed down through our royal bloodline.
It's called… Poseidon."
Franky gasped.
"Poseidon?!
You mean the Poseidon—the ancient weapon that controls the Sea Kings?!"
Neptune nodded gravely.
"Exactly.
The so-called ancient weapon 'Poseidon' isn't an object. It's a power passed down through mermaid princesses—only awakening once every few hundred years, and never in a predictable way."
"But… when Shirahoshi's mother died, she was so heartbroken that she accidentally awakened it.
She summoned an entire swarm of Sea Kings to Fish-Man Island—instantly. It shocked everyone."
"Vander Decken's ancestors came here looking for that power. He wasn't just after Shirahoshi's beauty. He wanted her ability."
Nami and Hina exchanged nervous glances.
"She can summon and control Sea Kings…?"
"If that's true… it really could destroy the entire world."
In this world, the sea rules all.
And in those seas, the most terrifying creatures are the Sea Kings—massive beyond imagination.
If a person could command them at will, destroying islands and nations would be child's play.
No wonder this power became legend—taboo—buried by history.
Neptune sighed again.
"Even now, Shirahoshi can't control it. And I didn't want anyone to know.
If the world finds out, monsters like Vander Decken will keep coming."
Chiyu replied:
"But right now, only that power can stop Noah—and save your island."
Truth is, if Chiyu wanted, he could destroy Noah himself.
But he wanted to see the legendary power of Poseidon.
More importantly—this was Fishman Island's fate to face.
Neptune understood.
"Let's return to the palace!
Vander Decken is dead—Shirahoshi is free.
Whether the island survives… is up to her."
"Yes, Your Majesty!"
Jinbe looked at Chiyu.
"You're really putting all your faith in Princess Shirahoshi?"
"She can't even control her power. If she fails… Fish-Man Island will be destroyed."
Chiyu answered simply:
"If it really comes to that—
I'll handle it."
Jinbe flinched, then nodded. He finally realized: Chiyu was in complete control.
"Thank you."
From that moment on, Jinbe was fully convinced.
…
"Wait… I can go outside?"
Shirahoshi was overwhelmed with joy—tears streaming down her face.
But that joy quickly turned to horror as Neptune explained the situation.
"H-How could this happen…?"
"Shirahoshi," he said solemnly, "only your power can save Fish-Man Island now."
"But Father… I don't know how to control it!
Maybe I should just leave. Noah's locked onto me, right? If I go, it'll follow—and the island will be safe."
Neptune shook his head.
"That's only a last resort.
Even if you leave, Noah won't stop. It'll keep chasing you forever.
If we can't stop it, you'll spend your life running from it."
Shirahoshi said quietly:
"Even so… my life doesn't matter as much as the whole island."
But Neptune had already seen through Chiyu's words.
"No, Shirahoshi…
I know how kind you are. That's exactly why you can't awaken your power just to save yourself.
Only when everyone is in danger will that power truly awaken."
"Go. Save Fish-Man Island. Unlock your power.
Become its protector."
He was thinking ahead.
If Shirahoshi could learn to control Poseidon, then not even the Marines—or the World Government—could threaten them again.
Shirahoshi nodded slowly.
"I-I'll try…
I won't let Fish-Man Island be destroyed!"
She followed Neptune to the frontlines of the island.
By now, the entire island knew what was happening.
Everyone—merfolk, fish-men—gathered in fear, waiting for the outcome.
Noah's massive silhouette loomed in the distance, slowly but surely approaching.
"Princess Shirahoshi!"
"We're all counting on you!"
"Please—stop Noah! Save Fish-Man Island!"
"Please, we're begging you!!"
Shirahoshi felt the weight of the world pressing down on her—but she had to try.
"Mother…"
In her mind, she saw the image of her mother dying—a memory she had tried to forget.
But that was also the moment her power first awakened.
Now, it was happening again.
"Please, Mother… watch over me.
Help me save Fish-Man Island…"
And in that moment—
everyone felt it.
A voice—ancient, powerful—echoed across the ocean, like a divine summons from the beginning of time.
Hummmmmm…
A vast, sacred force resonated through every soul.
Then—
One by one, colossal Sea Kings emerged, answering Shirahoshi's call—answering Poseidon's call—from all directions, closing in on Fishman Island.
"T-They're here!"
"Look—Sea Kings! So many of them!"
"She actually did it… and the number is unreal…"
"This is… this is really…God-like power!"
Everyone was speechless—Nami, Hina, Franky, even the marines aboard the Uchiha were frozen in awe, stunned by what felt like a divine miracle.
Chiyu nodded to himself.
"As expected…
This is the kind of power…
That could destroy the world."
~~~
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