onepiece

Two barrels at the start? When Tatsuya woke up, he found himself squeezed into a barrel of wine, with the future Pirate King Luffy sleeping next to him. Bind to the [God-Level Naruto System] and receive the Sharingan as a starting reward! From then on, the Straw Hat Pirates had a vice-captain with a unique style. Marineford War? Facing Akainu's magma fist. Tatsuya sneered, and the complete Susanoo behind him rose from the ground: "Akainu, have you ever seen the Uchiha in their prime?" Light-speed kick? Facing Kizaru who can take down enemies with a single kick. Tatsuya's Sharingan flashed: "Flying Thunder God Technique, ever heard of it?" Take you back to a new age of sailing filled with passion and emotion!

What do you do when you're out at sea without a ship? Allen: “Steal one.” What do you do when there's no crew on board? Allen: “Dig them from others.” What do you do when you have people but no supplies? Allen: “Rob the Marines.” Treasure? Famous swords? Devil Fruits? Beautiful women? Allen: “Brothers, look! That transport ship up ahead was practically delivered from the heavens—it has everything we need!” Transmigrated into the world of One Piece with the monstrous combat talent and Hanma bloodline from the Baki universe, Allen refuses to play by anyone’s rules. He starts with nothing but his two fists and an unyielding will. In the East Blue, where the weak are prey and dreams are crushed daily, Allen begins his legend by toppling tyrants, poaching elite talents, and building his crew through sheer force and charisma. He steals the Black Cat Pirates’ ship and crew. He recruits the genius chef Sanji before the Straw Hat can. He shatters Arlong’s reign to claim Nami and her village’s future. With a black captain’s coat billowing like a demon’s shadow and a savage lion-skull Jolly Roger flying high, Allen declares war on the entire sea. “I don’t chase the One Piece for glory. I just want the biggest, most dazzling stage where my strength can bloom without limits.” Freedom. Power. Conquest. He will take them all—by stealing ships, stealing people, and stealing destiny itself. My name is Allen. I advocate for absolute freedom. And I will become the most willful, reckless, and unstoppable pirate this world has ever seen. The Demon Lion has set sail.

A modern-day beauty, Luna, is suddenly transported into the world of One Piece. In a world defined by freedom and adventure, she decides that if she’s already here, she might as well leave her mark. Who says women are inferior to men? If this world has a throne, then she’ll claim it and become its queen. From the very beginning, Luna awakens the System, receives a beginner’s gift pack, inherits Greeza’s power template, and unlocks all three forms of Haki. And that’s not all—her identity itself is far from ordinary. She begins recruiting crew members from the original One Piece world, including Kuina, Carmen, Kaya, Nojiko, and Uta, all of whom survive and join her journey. At the same time, powerful companions are summoned from other worlds: Galactron MK2, Platinum Rumble, Asada Shino, Tatsumaki, Dia, Lillymon, and Diancie. Brand-new powers. Original partners. A completely different fate. Starting from East Blue, Luna crushes every obstacle in her path—rising to become the Fifth Emperor of the Sea, overwhelming the Marines, destroying the Celestial Dragons, beating down the Five Elders and Imu, and ultimately dominating the pirate world. All to become a World Queen, admired and worshipped by countless people. Shanks: “The Sister Pirates? Interesting. Then Uta is yours.” Usopp, Sanji, and Nami: “Kaya… Carmen… Sis… what happened to you?!” Vegapunk: “Unbelievable. My research abilities are inferior to a teenage girl.” Sengoku: “Why is an all-female pirate crew this terrifyingly strong?” Garp: “You’re his granddaughter, aren’t you?” Luffy, letting out a sigh of relief: “Good thing no one’s stealing my title as Pirate King.” And deep within the shadows, Imu screams in despair: “Can someone tell me… how do you fight the Void?”

When Ye Shi transmigrated into the body of a young girl, she was granted the dual powers of the Emperor of the Frozen and the Emperor of the Madman! Despite being a young girl, she is determined to reach the pinnacle of the Navy and wield supreme power! She can be both cute and domineering, a skilled warrior and adept at winning hearts; once the City of Time opens, the Four Emperors retreat and pirates bow down! "Want to become the Pirate King? You'll have to get past me first!" "Want to protect the Celestial Dragons? Ask my Zafkiel's bullets if they'll allow it!" Years later, in the Holy Land of Mary Geoise. Im sat in the void, yet was locked onto by more than a dozen streams of Conqueror's Haki, feeling a chill run through his body: "Im, these powerful beings have actually joined forces?" Sweep away pirates to become an admiral, overthrow tyranny and stir up the winds of change, and finally lead the allied forces of the three major factions to return the sovereignty of the world to every free person! Additional Tag: Genderbend

What happens when a child of the Senju bloodline is born with the power of the Magma, similar to Magma-Magma Fruit? That is the story of Shin Kagutsuchi. In the world of Naruto, where power is defined by dōjutsu, where the Sharingan, Byakugan, and Rinnegan reign supreme, he was born as an anomaly. Blessed with the vitality of the Senju and the destructive force of magma, Shin’s ability evolved in an entirely unknown direction.

Miss Planeswalker, Do You Have Time to Fall in Love? Author: See You Next Life Staying overnight at midnight, Kato Megumi leaned against the door: "Who's outside the door?" Kasumigaoka Utaha looked at Sen Getsusa with a proud face: "The enemy of the spirit god Yubaba, the Daughter of Emerald whom the Borrowing Fairies serve, the endless storm riding across the Caribbean Sea, the savior of the Night Fury, the person Stark Industries is always waiting for, the reborn sage of Ohara, the immortal princess of the Middle-earth elves..." Kato Megumi: "My house can't fit so many people!!" If you travel, it should be interesting! Then... please follow Miss Planeswalker, In a World where mystery is reviving, let's start a pleasant daily life! (Worldview and involved Worlds: "Everyone Loves Eriri," "Ogino Chihiro: Gourmet Journey," "Jack Dawson's Captain America Memoirs," "Dream Home Makeover: Ohara and Nico Robin," "Sisters Who Brave the Wind and Waves: Laura Croft," "Kasumigaoka Utaha: Who is Kasumiko?", "The Birth of an Actor: Minagawa Akane," "Run, Jack Sparrow!", etc.)

This is a original fanfiction story,so I hope you like it. --------- Waking up on a hostile, shifting island with promise from his past, Kai’s only lifeline is a mysterious device clamped to his wrist—a "Power Watch" inhabited by a snarky, tactical AI named Bot. With a simple vocal command, the watch grants Kai the extraordinary ability to transform and wield the primal elements of nature. But the Grand Line is unforgiving, and channeling such concentrated elemental power pushes his mortal body to its absolute breaking point. ​Rescued by the chaotic, fiercely loyal Straw Hat Pirates, Kai is swept into an unpredictable world of corrupt Warlords, Devil Fruits, and high-seas rebellion. Exempt from the sea's curse but locked in a battle against his own physical limits, Kai must master his transformations alongside Luffy, Zoro, and the rest of the crew. As they sail to his journey,he discovers that while he may be a glitch in this universe, he has finally found a fellowship worth risking everything for.

All taken, not one left behind! Every beautiful woman will be mine! Reno transmigrated to the One Piece World, awakening a system to conquer beautiful women. As long as he conquers plot-relevant beautiful women, he can obtain rewards. From then on, Reno went further and further down the path of conquering beautiful women. Nami: "I... I'm going to faint!" Kaido: "You bastard, give Yamato back." Tsuru: "Reno, please be merciful and spare Peacock." Hancock: "Reno, from now on, this concubine is yours." Sengoku: "Damn it, all the Marine beauties have been snatched by Reno!!" Five Elders: "Quick, go invite Imu... huh? Where is Imu?!" Reno glanced down indifferently, "Are you looking for her?!"

In a world of Logia admirals and Conqueror's Haki, Roldy had two things: a Mink's rage and the Moa Moa no Mi—the power to multiply anything by ten... The Celestial Dragons called him a freak. They were all right. When you can multiply your fist by ten, every problem looks like a nail.

Taro transmigrated to the world of One Piece with a system called "Peerless Martial Arts Master". With the system's capabilities, he can learn any move from anyone after just one viewing. Garp's Iron Fist, Hawkeye's swordsmanship, Luffy's Gum-Gum Battle Axe, Zoro's Three-Sword Style, etc., are all easy to learn at a glance. Taro always felt he needed to play it safe, otherwise he would easily get killed. One day, after making a move, I suddenly discovered that... I'm so competitive! Everyone said: We already knew!

Rowan transmigrated into the world of One Piece and obtained a treasure chest system. Through it, he could draw powerful abilities and items from different worlds. Edo Tensei and Flying Thunder God from the Naruto world. Zanpakuto from Bleach. And that was only the beginning. More and more powerful abilities continued to appear in his hands. Blackbeard: “Why… why do I have to exist in the same era as a monster like Rowan?” Whitebeard: “This kid is terrifying. It seems I truly belong to the old era.” The Five Elders: “This Rowan… is even more dangerous than Rocks.”

This story begins during the canon timeline, bridges world-breaking events, and continues past the series finale. Dracule Marya Zaleska has always lived in the shadow of her father, Dracule Mihawk, the world’s greatest swordsman. But Marya is no ordinary heir to a legendary name. Gifted with the enigmatic Oni-Oni no Mi (Mist-Mist Fruit), she wields the power to summon spectral apparitions and manipulate the veil between the living and the dead. Yet, this power is both a blessing and a curse, as it binds her to a destiny she does not yet understand. Determined to escape her father’s towering legacy, Marya sets out on a journey to uncover the truth about her mother, a woman shrouded in mystery who sacrificed herself to protect a secret so profound it could shake the foundations of the world. Along the way, Marya discovers fragments of her mother’s past—clues that lead her to ancient ruins, forgotten battles, and a conspiracy that ties her family to the origins of the Devil Fruits themselves. As Marya delves deeper into the mysteries of her lineage, she navigates treacherous seas, faces off against ruthless enemies, and uncovers the truth about the Mist-Mist Fruit’s dark origins. But the closer Marya gets to the truth, the more she realizes that her parents’ sacrifices were not just for her sake—they were to protect the world from a looming catastrophe. As the line between ally and enemy blurs, Marya must confront the darkness within herself and decide whether to embrace her Mist-Mist powers or reject them to forge her own path. "Dracule Marya Zaleska: Oni Phantom - Devil Fruit Origins" is a tale of legacy, sacrifice, and self-discovery. In a world where the past and present collide, Marya’s journey will reveal the secrets her parents died to protect and challenge her to rise above the shadows of her name to become a legend in her own right. Will she uncover the truth in time to save the world, or will the weight of her legacy consume her? #FinalSaga #PostCanon #BridgeLore #PostTimeskip #CanonExpansion #WorldBuilding #HighWordCount #DailyUpdate

When Marco from the One Piece world, carrying the secrets of the Three Types of Haki, is reborn in the Douluo Continent... When the top-tier Azure Flame Phoenix Spirit meets latent Observation, Armament, and Conqueror's Haki... When the limits of Spirit Rings are broken, when the definition of Spirit Abilities is rewritten! How will he, with the experience of two lifetimes, push flames and Haki to unprecedented heights? Azure flames burn out, the Conqueror descends!

Lineage Factor + Zoan-type Devil Fruit = Monster Girl? Monster Girl + Millet-Millet Fruit = Hundred Beasts? Brian, who crossed over into this world, uses his beyond-the-world imagination to create an unprecedented army of Monster Girls through Lineage Factor. Starting by encountering the Rocks Pirates, he becomes one of the top executives and participates in the God Valley War. One year later, as one whale falls and ten thousand creatures rise, Shiki, Whitebeard, Big Mom, and the Hundred Beasts heroes emerge together, earning the title of Four Emperors. Kaido's fate is stolen, losing his title and the Fish-Fish Fruit. Will he be kept by Big Mom? Where should he go? A forty-year great pirate journey, battling the Marines, nurturing the Revolutionary Army, fighting the World Government—whatever is exciting, he'll do it! Brian, with hundreds of Monster Girls under his command: What is Imu? Get down from that throne

[Ding! Host was called out by Chief Instructor Zephyr at the opening ceremony for having a crooked tie. Violation Value +1!] [Ding! "Witness Coefficient x5" triggered. Violation Value x5!] [Ding! Violation Value has been credited and can be used for basic enhancements and skill epiphanies!] Kane understood. He was destined to become the Navy King! And so, the style of the Navy Elite Training Camp took a sudden turn. "Kuzan, how can Justice be merely superficial? Come with me to the Pleasure Quarter to experience the hardships of the mortal world!" [Ding! For tricking a future Admiral into sneaking out of the base late at night, Violation Value +500! Subversion Coefficient x10!]

In the East Blue, after two and a half years of isekai life, he’s only managed to become a lieutenant, yet he’s no match for a pirate with a million-berry bounty. Just as Ivan, with his outstanding looks, catches the eye of the female pirate Alvida, he suddenly obtains the Multiverse Template System! Gojo Satoru Template: Cursed Technique Lapse: Blue, Cursed Technique Reversal: Red, Black Flash! Kaido, how is Black Flash not Conqueror’s Haki Infusion? Uchiha Madara Template: Almighty Push, Universal Pull, Planetary Devastation, Tengai Shinsei! Fujitora Issho, you think you’re the only one who can pull down meteors? Kurosaki Ichigo Template: Getsuga Tenshō, Earth-Shattering Crushing Strike, Black Flow Fang Thrust! Hawk-Eyes, you still need more training—I am the true Swordsman Master! Until finally, countless templates converge into one, and Ivan stands above the Holy Land of Mary Geoise. Below, the Gorosei turn pale with fright, blustering, "Ivan, what are you doing? Don’t forget your identity, you are the..."

[#SUPER BIG CHAPTERS #FAST-PACED] Reborn in the body of a Marine Captain in South Blue, armed with a sight that shows him the good and bad karma done in someone's life, Light Yagami resumes his "work". The God of the New World has transmigrated. God help the New World. --------------- - (No need to have watched Death Note before) -No Harem -Earned power growth, not OP. -READ 30+ CHAPTERS AHEAD AT { patreon.com/Glivaria }

After completing one full cycle of Demon Slayer, Vane sets out from the West Blue, wielding the power of Pokémons. He undermines figures such as Crocodile, Blackbeard, Doflamingo, and even the World Government, starting from the West Blue and gradually building a fleet, carving out territory in the New World.

Transported into the pirate world—before the story even begins. Born a Celestial Dragon, he awakens a Treasure-Digging System— capable of unearthing anything from across countless worlds. Madara, Tatsumaki, Rem, Yoriichi, Misaka, Kurumi… all become his subordinates. From that day on— a different Celestial Dragon rises. Golden Lion: “Who said Celestial Dragons are trash?!” Garp: “The only one I acknowledge… is Saint Bernard Is.”

After dying in his sleep, a modern-day anime fan isekai as a child, crewless Monkey D. Luffy. No crew. No Haki. No Gum-Gum fruit… yet. Just pain, awkward child limbs, and a system that turns life into a grindfest. Then the Partner System kicks in. To grow stronger, Luffy has to power up others first, because apparently being the main character wasn’t hard enough. Each buffed-up partner boosts his own stats and unlocks powers from across the anime multiverse. Fairy Tail magic? A one-hit kill blade? A soul-cutting sword that speaks? Absolutely. Now armed with grindable friendship, hellish Garp training, and a suspiciously game-like UI, Luffy’s ready to recruit his way to Pirate King. A dark, reimagined One Piece universe.