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The Curse of the Witch of the All Blue's Retribution

Summary:

When the mysterious "Witch of the All Blue" retaliates against Sanji’s unwanted flirtation with a potent curse, the Straw Hats initially brush off the threat as a fake. But the magic takes a quiet, tragic hold: while physically unchanged, Sanji's mind regresses to his childhood self, traumatized by his family’s cruelty, yearning for his mother’s warmth, and terrified of the world around him. Worse still, the spell compels him to project the memory of his late mother onto an unsuspecting Luffy.

After a quiet evening on the ship, the curse finally triggers in the dark of night. Sanji awakens confused, afraid, and surrounded by strangers, huddled in the corner of the men's cabin in tears. Now, the crew must figure out what happened to their cook and Luffy must navigate an entirely new bond with a boy who desperately needs protection.

Chapter 1: The Witch and her Lightning

Chapter Text

The Thousand Sunny cut through the glassy, mist-shrouded waters with the silent grace of a ghost ship, her lion figurehead peering into a horizon blurred by pale turquoise fog.

The island had loomed out of the gloom without warning. It was not on any Log Pose, nor did it register on the weather-sensing instincts Nami so fiercely trusted. It simply existed a lone, jagged spire of obsidian rock and overgrown emerald jungle, rising like a crooked tooth from a sea so eerily calm that not a single ripple disturbed the reflection of the clouds overhead.

"Land ho!" Usopp’s voice bounced off the silent crags from the crow's nest, though it lacked his usual bravado. "Uh... guys? Is it just me, or does this place look kind of... creepy?"

"It’s just an uncharted island, Usopp," Nami called up from the helm, adjusting her grip on the wheel. Her orange hair whipped softly in a light, unnatural breeze. "We’re running low on fresh water, and according to the chart I bought at the last port, there might be rare citrus trees in this sector. Sanji-kun, how are our rations holding up?"

From the deck, the quiet click of a metallic lighter preceded a small puff of pale smoke. Sanji leaned against the railing, his dark suit tailored to perfection, his blonde hair falling in a slick, familiar sweep across one side of his face. He exhaled a long drag of his cigarette, his blue eyes softening instantly as he turned toward the navigator.

"For you, my sweet Nami-swan, I could conjure a banquet out of thin air!" he sang out, his torso doing a ridiculous, liquid sway. "Though a fresh supply of sweet limes and island spices would make my heart and my kitchen sing with boundless joy! I shall scour every inch of this rock to find whatever your delicate palate desires!"

"I'm hungry too, Sanji! Cook me something!" Luffy shouted, hanging upside down by his knees from the main mast, his arms dangling toward the deck. "With cheese! And juice! And those little round things that go pop in your mouth!"

"Shut up, idiot Captain! You ate three days' worth of dry meat this morning!" Sanji snapped, though there was no real venom in his tone. He flicked his cigarette ash over the side, glancing at the approaching shoreline. "I'll forage for vegetables and fruit first. If there's meat, you'll get it at dinner."

The ship glided into a narrow, natural bay lined with crushed white sand that gleamed like salt under the dim sky. The moment the anchor dropped with a heavy splash, a strange sensation settled over the crew a low, rhythmic hum, like a distant hymn sung by a thousand voices, vibration echoing through the wood of the deck and into the soles of their boots.

"Is that... music?" Chopper asked, his nose twitching as he clutched at Zoro’s pant leg. "It smells like... old books and saltwater."

"It's just the wind in the hollow rocks," Zoro grunted, his hand resting casually on the hilt of Wado Ichimonji. Yet his eye narrowed, sweeping the dense treeline that edged the sand. "Though the vibe is off. Stay sharp."

"A witch!" a voice suddenly echoed from the tree line.

It wasn't loud, yet it sounded as though it were being spoken directly into each of their ears.

Out from the shadow of the giant, weeping mangroves stepped a solitary figure. She was tall and withered like sun-dried driftwood, wrapped in robes woven from dried sea kelp and shimmering mother-of-pearl. Her hair was a wild, tangled mane of sea-foam green, falling down to her ankles, and around her neck hung a heavy garland of bleached fish bones and iridescent abalone shells.

In her frail, gnarled hands, she held a long staff carved from whalebone, topped with a glowing, swirling orb of deep, midnight-blue water that seemed to defy gravity, rotating endlessly in mid-air.

"A witch?" Usopp shrieked, instantly diving behind Zoro. "A REAL WITCH?! Nami, turn the ship around! We're gonna get turned into frogs!"

"Quiet, coward," Robin said with a small, serene smile, though her eyes were analytically tracking the old woman’s every movement. "She doesn't appear to be a Marine."

The old woman paid no mind to the sniper or the archaeologist. She glided across the sand, her bare feet leaving no footprints behind, her pale, milky eyes fixed entirely on the blonde chef standing near the Sunny's gangplank.

"I am the keeper of the Azure Shroud," the old woman rasped, her voice layered with the haunting cadence of crashing waves. "The guardian of the deep currents... the one men used to call the Witch of the All Blue."

The moment the words left her mouth, Sanji froze. His cigarette slid half a millimeter between his lips.

The All Blue.

The legendary ocean where the fish from the East, West, North, and South Blue swam together. The chef's ultimate dream. The fairytale he had clung to when he was a starving boy dying on a desolate rock in the middle of nowhere.

In an instant, Sanji’s eyes turned into giant, throbbing red hearts. He vaulted over the Sunny's railing, landing on the sand with smooth, effortless grace, sliding down on one knee right in front of the ancient hag. He whipped out a freshly picked purple wild rose from who-knows-where, holding it up with a dramatic flourish.

"Oh, marvelous maiden of the seas!" Sanji gushed, his voice dripping with exaggerated, sugary adoration. "To think that the keeper of my heart's ultimate desire was waiting for me on this forgotten shore! If you truly hold the secrets to the All Blue, then tell me, my wrinkled goddess, does your heart beat for a love as fiery as mine? Or perhaps... does a treasure like you need a young, handsome cook to stir your ancient pot?"

WHACK!

A orange-haired blur descended from above. Nami’s fist struck Sanji’s head with the force of a falling meteor, producing a cartoonish, steaming bump on the cook's skull. Sanji hit the sand face-first with a muffled groan.

"YOU IDIOT!" Nami roared, her teeth sharp as a shark's. "Have some respect! She’s an old lady, and we don't even know if she's dangerous! Stop hitting on every female entity with a pulse!"

"N-Nami-swan's violent touch... is a reward in itself..." Sanji mumbled weakly into the sand, floating in a sea of his own ridiculous romance.

However, the old woman did not smile. She did not cackle.

The air around her grew ice-cold. The swirling blue orb atop her whalebone staff suddenly flickered, turning a jagged, bruised shade of deep violet. The sea behind them hissed, drawing back from the shore like a dying breath.

"Insolent brat," the Witch hissed, her pale eyes flashing with a terrifying, ancient fury. "You dare mock the sacred name? You dare use the dream of the oceans as a cheap, tasteless line to satisfy your shallow vanity?"

Sanji pushed himself up, rubbing his bruised head, his playful demeanor vanishing as he sensed the sudden spike in hostility. "Hey, old lady, it was just a compliment-"

"Silence!" she shrieked, slamming her staff into the wet sand. A shockwave of freezing mist blasted outward, forcing Luffy, Zoro, and the others to shield their eyes. "You carry the scent of sea-salt and grease, cook of the straw hat! You dare dream of the All Blue, yet your heart is cluttered with foolish pride and hollow banter! You have forgotten the purity of the suffering that birthed your dream!"

"Hey! Don't yell at Sanji!" Luffy yelled, bouncing down from the ship and landing between Sanji and the old woman, his fists clenched, his straw hat resting low over his brow. "He's our cook! And his food is the best in the world!"

The Witch of the All Blue looked at Luffy, her milky eyes narrowing as if seeing straight through his flesh and into his very soul. A strange, twisted smile curled her cracked lips.

"A captain who hungers... and a cook who serves," she whispered softly. "Very well. You shall learn the weight of your disrespect, boy. I shall not take your life, nor your strength, nor your legs. I shall take away the armor you built to protect yourself from the world!"

She raised her staff high into the air. The violet orb expanded, crackling with dark, unholy energy.

"Receive the curse of my retribution!" she declared, her voice echoing like thunder over the quiet bay. "Let the walls of your adulthood crumble! Let the man fade, and let the child remain! You shall walk this world in the flesh of a fighter, but with the mind of the helpless boy who wept in the dark!"

"Sanji, move!" Zoro shouted, drawing his swords in a flash.

"I curse you to revert to the dawn of your despair!" the witch cried out, pointing her staff straight at Sanji. "To the days when you were weak, hated, and broken! To the time when you were nothing but a disappointment to the father who cast you out, and a punching bag for the blood of your blood!"

Sanji’s eyes widened. A sudden, suffocating terror gripped his throat. Father? Siblings? How did she-

"And so that you do not perish in the dark of your own mind," the Witch’s voice lowered to a chilling, melodic hum, "a beacon shall be granted to you. Among your companions, the one who possesses the purest, most unyielding warmth shall become your sanctuary. In your eyes, this person shall bear the light of the only soul who ever loved you in your dark morning... the light of your mother!"

She did not name anyone aloud. She did not need to. The magic of the curse was an invisible thread, spun from ancient malice and deep, ocean magic, snapping across the air and wrapping tightly around Sanji’s heart, anchoring itself squarely onto anothers.

"Sanji!" Luffy yelled, reaching out to grab him.

Before anyone could react, before Zoro could slash, before Luffy could stretch, before Sanji could even raise a leg to defend himself a sudden, blinding tear ripped open the clear sky above.

CRACK-BOOM!

A bolt of pure, white lightning dropped straight out of the cloudless blue sky, striking Sanji dead-center.

The deafening sound shook the entire island. White light engulfed Sanji’s body, illuminating his skeleton through his skin for a split second. Smoke poured off his dark suit as he stood frozen in place, his eyes wide and vacant.

"SANJI!" Nami screamed, clutching her head.

"SANJI-KUN!" Chopper wailed, instantly tearing open his medical bag and sprinting across the sand.

The smoke slowly cleared.

Sanji was still standing. His suit was slightly singed at the cuffs, and a few loose strands of blonde hair were smoking softly, but he remained upright. He blinked once. Twice. He lowered his hand from his pocket and looked down at his palms, then looked up at the crew.

The Witch was gone.

Where she had stood only seconds before, there was only a pile of damp, ordinary sea kelp and a few scattered fish bones. The sea behind them returned to its gentle, glassy calm, and the strange, haunting hum in the air vanished completely.

"Sanji! Are you okay?!" Chopper squeaked, rushing to the cook's side and pressing a stethoscope against his chest. "Talk to me! How many fingers am I holding up?!"

Sanji looked down at the tiny reindeer. He blinked, a slow, somewhat bewildered expression washing over his face. Then, he patted Chopper gently on his blue nose.

"I'm fine, Chopper," Sanji said. His voice sounded... completely normal. Smooth, calm, perhaps a little tired, but entirely unchanged. "Just a bit startled. That was... weird."

Zoro sheathed his swords, his eye still narrowed in suspicion as he scanned the empty beach. "That was lightning. You got blasted by a direct strike, curly. You sure you're not fried?"

"I have a high tolerance for heat, moss-head," Sanji retorted, rolling his shoulders and adjusting his tie. He patted his pockets, pulling out his pack of cigarettes. He lit one with a flick of his lighter, taking a long, steady drag before exhaling into the sea breeze. "Besides, I feel fine. No pain, no burns."

Luffy walked up to Sanji, tilting his head back to stare intently at his cook’s face. He poked Sanji hard in the cheek.

"Hey. Sanji. Are you a frog?" Luffy asked with utmost seriousness.

"Why the hell would I be a frog?!" Sanji snapped, flicking Luffy’s forehead. "Stop poking me, Captain."

"Phew..." Nami slumped against the Sunny's railing, wiping a bead of cold sweat from her forehead. "For a second there, I thought she really cursed you. What a dramatic old fraud! Throwing around big words like 'curse of retribution' just because she got offended!"

"She was probably just an old fortune teller using dial-dial dials or lightweight dials to simulate effects," Usopp said, suddenly coming out from behind Zoro and puffing his chest out. "Hmph! Good thing I didn't get involved! I would have defeated her with my Special Firebird Star in half a second!"

"Indeed," Robin agreed smoothly, though her eyes lingered on the spot where the old woman had vanished. "Ancient tricksters often inhabit these unmapped islands to scare away pirates. Still... a strike of lightning from a clear sky is quite a magnificent trick."

"Forget about her," Sanji said, tossing his cigarette butt into the sand and crushing it beneath the heel of his leather shoe. "We need fresh water and vegetables. Let's get what we need and leave this creepy rock. I'll head into the jungle."

"I'm coming with you! Meat hunt!" Luffy cheered, jumping up and down.

For a fraction of a second, so fast that no one else noticed Sanji’s eyes flicked to Luffy. A strange, brief shiver ran down the cook's spine. Looking at Luffy, Sanji felt a sudden, inexplicable wave of overwhelming warmth wash over his chest, like the feeling of being wrapped in a thick, sun-warmed blanket on a freezing winter night. It was an intense, aching sweetness that made his throat feel tight.

He blinked, shaking his head slightly to clear the fog. 'What was that? Must be the lightning after-effect.'

"Fine," Sanji muttered, a soft, fond smile touching his lips. "Come on, Luffy. But if you eat the berries before I inspect them for poison, I'm kicking you into the treetops."

The rest of the afternoon passed in absolute, mundane normality.

Sanji and Luffy scoured the lush jungle interior of the island. They found an abundance of wild citrus trees bright, sweet tangerines that Sanji carefully packed into burlap sacks for Nami, along with fresh river water, edible tubers, and a species of large, flightless island fowl that Luffy successfully chased down and captured with a boisterous laugh.

Sanji worked with his usual, breathtaking efficiency. He carried the heavy sacks without complaint, checked the wild herbs for toxicity, and scolded Luffy every time the younger boy tried to swallow a weirdly colored mushroom.

By the time the sun began to dip below the horizon, painting the sky in vibrant shades of magenta and gold, the Straw Hats were fully resupplied. They weighed anchor and set sail, leaving the strange, silent island behind as it swallowed itself back into the thick, turquoise mist.

The galley of the Thousand Sunny was bathed in the warm, golden glow of hanging lantern light. The rich, mouth-watering aroma of roasted poultry, savory garlic butter, steamed island vegetables, and fresh citrus glaze filled every corner of the ship.

"FOOD IS SERVED!" Sanji shouted, pushing open the heavy wooden doors of the galley while balancing five massive trays along his arms and head.

"MEATTTTTTT!" Luffy roared, catapulting himself onto his bench at the long wooden dining table.

The dinner was as loud, chaotic, and cheerful as any other night on the Grand Line.

Luffy tried to steal food from Zoro’s plate, Zoro blocked him with the blunt side of a fork, Usopp was busy recounting a wildly exaggerated story about how he single-handedly scared off the "Witch of the All Blue", Chopper was starry-eyed, listening to every word, Robin chuckled softly as she sipped her tea, Franky was loudly singing the praises of the citrus-infused cola Sanji had whipped up and Brook was playing a lively tune on his violin, requesting to see Nami’s panties every three minutes only to get knocked out cold by the navigator.

Sanji stood near the stove, a white apron tied around his waist, watching his crewmates with a quiet, contented smile. He poured a glass of sweet, chilled wine for Nami and a cup of floral tea for Robin, placing them down with his usual galant flourish.

"Sanji, this roasted bird is INCREDIBLE!" Luffy yelled through a mouthful of meat, gravy dripping down his chin. "You're the best cook in the whole world! I love you!"

Sanji paused. He looked down at Luffy.

That strange, overwhelming ache returned to his chest, double the intensity from earlier. It felt as though his heart was swelling, pressing hard against his ribs. Looking at Luffy’s wide, grease-stained, beaming smile, Sanji felt a sudden, terrifying urge to tear off his apron, wrap his arms around his captain, and hide his face against Luffy’s chest.

It was a feeling of profound, desperate safety the kind of safety a terrified child feels when clinging to the only person in the universe who won't hurt them.

Sanji swallowed hard, his knuckles turning white as he gripped the edge of the serving tray. He forced a dry laugh, turning his back to the table to hide the sudden, uncharacteristic tremor in his hands.

"Just finish your food, idiot," Sanji murmured softly. "There's second helpings on the counter."

Nobody noticed the slight waver in his voice. The dinner drowned in laughter, music, and the clinking of heavy mugs.

By midnight, the Thousand Sunny was enveloped in the quiet stillness of the open sea.

The sky above was clear, studded with a million sharp, glittering stars. The ship rocked gently on the dark ocean swells, her timbers creaking softly in a rhythmic, comforting lullaby.

In the men's quarters, the air was thick with the rhythmic sounds of sleep. Zoro was sprawled on his back on a lower hammock, snoring softly with his hand still resting near his swords. Usopp was talking in his sleep, muttering something about a army of ten thousand giant beetles. Franky was snoring loudly like a revving engine, while Chopper curled up in a tiny ball at the foot of Luffy’s hanging bed.

Luffy was sound asleep, his body stretched out in impossible, rubbery angles, snoring with a giant snot bubble growing and shrinking at his nose.

Sanji opened his eyes, gasping silently for air, his heart hammering against his ribs like a trapped bird. Cold sweat drenched his white undershirt, sticking the fabric to his chest. His mind was a chaotic, blood-stained nightmare of clashing metal, cold stone floors, and the echo of cruelty.

“You’re a failure, Sanji.”

“A useless piece of trash.”

“Why were you even born?”

“Look at him, crying again over a plate of disgusting food!”

“Put the helmet on him. Lock him in the dungeon. He doesn't exist to this family anymore.”

Sanji shot up in his hammock, breathing heavily, his hands clutching at his neck. He felt for the cold, heavy iron mask, the horrific, suffocating helmet his father, Judge, had locked around his head so many years ago.

It wasn't there. His fingers touched smooth skin and sweat-dampened blonde hair.

He let out a ragged, trembling exhale, trying to calm his racing pulse. "Just a dream..." he whispered to himself. "It was just a dream..."

He swung his legs over the edge of the hammock, intending to stand up, slide into his shoes, and go out to the deck to smoke a cigarette to clear his head.

He stood up.

And that was the exact moment the curse took full effect.

It didn't come with a flash of light. It didn't come with pain. It was a silent, terrifying shift in the very fabric of his consciousness. Like a glass bottle shattering into a thousand invisible shards, the twenty-one-year-old mind of Sanji, the master martial artist, the proud cook of the Straw Hat Pirates, the man who had faced warlords, admirals, and monsters, simply vanished.

In its place, swallowed entirely by the witch’s dark magic, was a seven-year-old boy.

The mental shift was absolute. Sanji looked down at his hands. To his altered mind, he was small. His fingers felt weak, frail, unblemished by the calluses of a kick-fighter. He was wearing clothes that felt far too big, heavy, and terrifyingly strange.

He looked around the room.

The dark, wooden walls of the cabin loomed over him like the towering, cold stone corridors of the Germa Kingdom’s castle. The heavy shadows cast by the hanging hammocks looked like terrifying, reach-out monsters.

And the noise-

The heavy, deep snoring reverberating through the small space wasn't the familiar, comforting sound of his nakama. To the mind of a terrified, abused seven-year-old child who had been locked in a dark, damp subterranean dungeon for months, those deep, gutteral snores sounded like the heavy boots of his brothers Ichiji, Niji, and Yonji coming down the hallway to beat him into a bloody pulp. It sounded like the cold, unfeeling armored guards coming to throw him into solitary confinement.

'Where am I?' Sanji’s mind shrieked in absolute, paralyzed terror. 'Where is this place?! This isn't my room! This isn't the castle! Is this... is this a new dungeon? Did Father build a wooden cage for me?!'

Panic, raw and unadulterated, seized his tiny, fragile heart.

He tried to call out, but his throat locked up. His chest heaved as hyperventilation set in. He backed away from the towering, strange shapes hanging from the ceiling. His heel caught on the edge of a stray boots, and he tumbled backward, landing hard on the wooden floorboards with a sharp thud.

"Ow..." he whimpered.

The sound was tiny. It was the voice of a little boy high, trembling, drenched in pure fear.

He scrambled backward on his hands and knees, dragging his body into the furthest, darkest corner of the cabin, right between a heavy wooden storage chest and the bulkhead wall. He pulled his knees up to his chest, wrapping his arms around his legs, burying his face in his knees.

'Please no,' he thought, tears spilling hot and fast down his cheeks, soaking into his trousers. 'Please don't hit me. I'll be good. I won't cook anymore. I won't make food for the rats. I'll train harder. Please, Father, don't leave me in the dark... It's so dark...'

He shook violently, his entire frame shuddering with small, stifled sobs. He squeezed his eyes shut, trying to make himself as tiny as possible, praying that if he stayed completely still, the monsters in the dark room wouldn't notice he was there.

Every creak of the ship’s hull sounded like a whip cracking. Every deep snore from Franky made him flinch as if a fist were about to strike his bruised face.

He was alone. He was weak. He was the useless Vinsmoke child who couldn't even break a stone wall. His mother was gone, dead in her cold, white bed, the only person who had ever smiled at him, the only person who had ever eaten his ruined, messy food and called it delicious.

"Mother..." Sanji wept silently, his shoulders shaking, his fingers desperately clutching his own shirt sleeves. 'Mother, it hurts... I'm scared... Please come back... Please...'

In the dark cabin, the little boy huddled in the corner, sobbing softly into the night, entirely unaware that the grand pirate ship he was on was sailing peacefully across the ocean, or that the crew sleeping around him would lay down their lives to protect him.

To little Sanji, the world was once again cold, cruel, and devoid of light.

And in his small, broken heart, he cried out for the mother he had lost, completely unaware that in the hammock just a few feet away, someone was sleeping soundly, the very someone the witch had chosen to be his only saving grace.