Reverse Mountain didn't look real.
Even from a distance it felt like the world had made a mistake—an ocean that climbed straight up stone, four raging currents crashing together and forcing their way into a single narrow throat. The mountain rose like a giant's spine from the sea, clouds curling around its peak as if the sky itself didn't want to get too close.
Aira stared at it with both hands locked on the helm.
"…So," she said carefully, "just to confirm… we *go up* the mountain."
Kenji leaned over the rail, squinting at the roaring wall of water. "I don't like it."
Ryu stood at the bow, wind tugging at his hair, eyes calm. "You liked fighting a Rear Admiral in the middle of a town."
Kenji pointed at the mountain. "That was normal danger."
Aira shot him a look. "Normal danger?"
Kenji nodded seriously. "This is *geography* trying to kill us."
Ryu's mouth twitched. "That's one way to describe it."
The closer they got, the louder it became.
The current's roar drowned out gulls, drowned out harbor sounds, drowned out thoughts. Water slammed against stone like a thousand drums, mist spraying into the air and soaking their faces.
Aira adjusted their angle, following the channel marked by old buoys and weathered warning signs.
One sign bobbed past them with big red letters:
*DO NOT PANIC.*
*(PANICKING CAUSES DEATH.)*
Kenji stared at it. "That sign is not comforting."
Aira forced a smile. "It's honest."
Ryu leaned closer to Aira, voice raised over the roar. "You're sure the Log Pose is set?"
Aira held up the Log Pose strapped near the helm. The needle was spinning like it had lost its mind.
"It's—!" she began, then cursed as the ship rocked violently. "It's doing whatever it wants!"
Kenji laughed once. "Perfect. We're entrusting our lives to a confused compass."
Aira snapped, "It's not confused! It's… experiencing new emotions!"
Ryu, unexpectedly, chuckled.
Kenji blinked. "See? He's laughing again."
Ryu pointed forward. "Less talking. More not dying."
The current grabbed them.
The ship lurched hard, nose swinging toward the roaring incline like an invisible hand had seized it. The bow rose, water climbing beneath them as if the sea had decided gravity was optional today.
Aira shouted, "Hold on!"
Kenji braced instantly, gripping the mast rope with one hand and his sword belt with the other. His healing injuries protested sharply, ribs aching, thigh tugging where the bandage still sat beneath his trousers.
He ignored it, teeth clenched.
Ryu planted his feet wide at the bow, steady as stone, though even he could feel the lingering pain in his ribs—old bruises from Hale that hadn't fully faded.
Aira fought the helm like it was alive.
The ship climbed.
Spray slapped them in the face. The sail snapped and strained, ropes screaming as they battled the current's pull. The ocean rose above them in a white torrent, mist filling the air so thick it felt like breathing through a wet cloth.
Kenji coughed. "So… how long is this—"
A wave slammed into the side.
Kenji vanished from the deck for half a second as the water picked him up like a toy and threw him across the planks.
He hit hard, rolled, and popped back up immediately, soaked and furious.
"…I'M FINE!" he yelled, though nobody had asked.
Aira shouted, "Stop being dramatic!"
Kenji pointed at the mountain. "THE MOUNTAIN IS DRAMATIC!"
Ryu's voice cut through it, calm and sharp. "Eyes forward. We crest soon."
"How do you know?" Aira barked.
Ryu gestured with his chin.
Through the mist, the peak was visible now—an impossible ridge where the water surged over and disappeared to the other side.
Aira swallowed.
Kenji whispered, "Okay… okay… okay…"
Ryu glanced back at him. "If you pray, pray quietly."
Kenji snapped, "I'm not praying!"
Aira muttered, "He's praying."
Kenji glared. "I'm thinking!"
Ryu smiled slightly. "Sure you are."
The ship surged toward the crest.
For a split second, everything slowed.
Water rose beneath them like a giant breath.
The bow lifted—
And then—
They tipped over the edge.
Gravity returned like an angry landlord.
Aira screamed something that sounded like a curse and a prayer blended together.
Kenji screamed something that was definitely neither prayer nor polite.
Ryu didn't scream.
He just gripped the railing and leaned into it, eyes focused.
The ship dropped.
Not sank—dropped
It shot down the other side of Reverse Mountain like a stone launched from a cannon. The world became spray and wind and white foam, the deck tilting so steeply it felt like they were falling into the sky.
Aira fought the helm, knuckles white, eyes wide. "DON'T—DON'T DIE—DON'T DIE—"
Kenji clung to the mast. "AIRA! IF WE DIE I'M HAUNTING YOU!
Aira yelled back, "IF WE DIE I'M HAUNTING YOU FIRST!"
Ryu's laugh slipped out—short, real, almost disbelieving.
Kenji heard it even over the roar.
"You're laughing?!" Kenji shouted.
Ryu shouted back, "It's funny!"
Aira snapped, "WHAT'S FUNNY ABOUT THIS?!"
Ryu, still laughing, answered, "YOU TWO!"
They shot lower.
The current narrowed, funneling them into a twisting channel between sheer rock walls. The ship bounced and slammed, wood groaning, ropes whipping wildly. The mast swayed like it might snap.
Aira corrected, overcorrected, corrected again.
Kenji braced.
Ryu watched the water like it was a fight he could read.
Then the channel widened—
And the ship burst out into open sea.
Silence hit like a punch.
Not true silence—the ocean still rolled, the wind still whispered—but compared to Reverse Mountain, it was like stepping out of a battlefield into a quiet room.
Aira slumped over the helm, panting.
Kenji lay flat on his back, soaked and staring at the sky like he'd just been reborn against his will.
Ryu exhaled slowly and sat down against the railing.
For a moment, none of them spoke.
Then Kenji lifted one hand weakly. "Never again."
Aira wheezed, "We have to… go back… eventually."
Kenji sat up so fast it made his ribs scream. "NO WE DON'T.
Ryu smiled faintly. "We do."
Kenji pointed at him accusingly. "You're enjoying this."
Ryu shrugged. "A little."
Aira finally looked up, wiping seawater from her face. "Okay. Log Pose. Grand Line. We made it."
She glanced down at the Log Pose.
The needle spun.
It spun fast.
Then it slowed.
Then it pointed.
Aira blinked. "…Huh."
Kenji pushed himself up and limped over, peering at it. "What's it doing?"
Aira frowned. "It's… pointing."
Kenji stared at the horizon. "Great. So… Grand Line is that way."
Ryu looked outward too.
Something felt off.
He couldn't immediately explain it, but his Observation brushed the air like fingertips and came back wrong.
The sea felt… flatter.
Not calmer. Just… familiar.
Not the strange, heavy presence people described about the Grand Line. Not the chaotic layered atmosphere of weird currents and unnatural weather.
This felt like…
Aira's brow creased. "Why does it smell like… pine?"
Kenji blinked. "Pine?"
Aira pointed vaguely. "That forest smell. Like… cold places."
Kenji squinted. "Maybe the Grand Line is… chilly."
Ryu didn't answer.
He scanned the horizon.
There—far off—was a shoreline.
And beyond it… land that looked too normal. Too structured.
The Grand Line was supposed to feel wild.
This looked like a Blue.
Aira swallowed slowly. "Ryu…"
"Yeah," Ryu said quietly.
Kenji looked between them. "Why are you two doing that thing where you talk without talking?"
Aira lifted the Log Pose slightly, staring at it like it had personally betrayed her. "I think… I think we exited wrong."
Kenji frowned. "Wrong… how? There was only one way down."
Aira pointed behind them at the mountain, then gestured outward at the sea. "Reverse Mountain connects to… more than one sea."
Kenji stared.
Then stared harder.
Then his eyes widened.
"No," he said slowly. "No no no—"
Aira's voice turned small. "We might be… in the North Blue."
Kenji went completely still.
Then—
He laughed.
Not a small laugh.
A full, loud, ridiculous laugh that made a nearby seagull take off in panic.
Ryu looked at him, amused.
Aira's face flushed. "It's not funny!"
Kenji wiped tears from his eyes. "Aira… we climbed a mountain to enter the Grand Line… and you took us to the North Blue."
Aira pointed at him. "I DID NOT TAKE US—"
Kenji leaned over the Log Pose like it was evidence in a trial. "Then who did? The sea? The mountain? The ghost of the Pirate King?"
Aira sputtered, "The currents are complicated!"
Kenji nodded solemnly. "Yes. Too complicated for you."
Aira lunged at him.
Kenji hopped back, wincing as his wounded leg protested, but still grinning like an idiot. "Ah—careful! If you kill me, you're short a swordsman!"
Aira bared her teeth. "You're short a brain!"
Ryu watched them with a hand over his mouth, shoulders shaking.
Kenji pointed at Ryu. "Don't laugh! You're supposed to be the responsible one!"
Ryu managed, "I am."
Kenji blinked. "Then why are you laughing?"
Ryu looked out at the calm sea, then back at them. "Because… it *is* funny."
Aira groaned loudly. "You're both against me."
Kenji patted her shoulder dramatically. "Welcome to the North Blue, Captain Navigator."
Aira slapped his hand away. "Stop calling me that!"
Kenji grinned wider. "Captain Wrong-Way."
Aira's eye twitched.
Ryu chuckled. "Okay. Enough.
Kenji immediately stopped—because when Ryu's tone went rational, it meant he was actually thinking.
Ryu faced the horizon again. "We confirm first."
Aira swallowed, then pulled out a small worn booklet—navigation notes mixed with her Mentor's older sea charts. Her fingers moved quickly as she flipped through pages.
Kenji leaned in. "What does the book say? Please tell me it says, 'Congratulations, you're in the Grand Line.'"
Aira glared. "It says…"
She paused.
Her face fell.
"…North Blue. The smell, the wind direction… and those clouds. It matches.
Kenji clapped once. "YES!"
Aira snapped, "WHY ARE YOU HAPPY?!"
Kenji spread his arms. "Because it's hilarious!"
Ryu exhaled slowly. "It also means…"
Aira looked up. "It means we're not ready for Grand Line yet?"
Ryu nodded. "Or… the sea decided we'd train longer."
Kenji leaned on the railing, grin still there but eyes sharper now. "North Blue pirates aren't East Blue pirates."
"No," Ryu agreed. "They're worse."
Aira's expression hardened.
Good.
That was the right reaction.
"Then we do what we always do," she said.
Kenji raised a brow. "Which is?"
Ryu's eyes sharpened as he looked at the distant coastline.
"We hunt," he said.
As if the sea wanted to answer him, a dark shape appeared on the horizon—another ship.
Bigger than the one they'd ended before Loguetown.
Its sails were clean.
Its flag wasn't crooked.
And the presence that rolled across the water toward them was cold, organized, and hungry.
Kenji's grin faded into something eager.
Aira tightened her grip on the helm.
Ryu stood at the bow, calm again, but not joking now.
"Looks like the North Blue heard we arrived," Kenji muttered.
Ryu nodded once.
"Then let's introduce ourselves properly."
The ship advanced.
The wrong sea had become their new hunting ground.
And the saga had begun.
___