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Sharingan Voyager: Itachi's Journey in the One Piece World by luckpass99 reviews
After a final battle with Sasuke, Itachi Uchiha awakens in Water 7 of the One Piece world. Discovering its shipbuilding renown, he joins the Straw Hat Pirates, led by Monkey D. Luffy, bringing his Mangekyo Sharingan and ninja skills to their adventures across the Grand Line. [itachi x robin] .
Crossover - Naruto & One Piece - Rated: T - English - Adventure/Romance - Chapters: 25 - Words: 169,308 - Reviews: 66 - Favs: 141 - Follows: 157 - Updated: 9/28 - Published: 6/27 - Itachi U., Robin, Strawhat Pirates
An Aura of Freedom by DolphinLover420 reviews
The Straw Hat Pirates come across a mysterious island in the Grand Line which has been isolated from the rest of the world. There, they meet a young man who calls himself a 'Pokemon Trainer', and throw themselves headfirst into a world-changing new Pokemon adventure.
Crossover - Pokémon & One Piece - Rated: T - English - Adventure/Friendship - Chapters: 20 - Words: 175,969 - Reviews: 21 - Favs: 100 - Follows: 111 - Updated: 9/28 - Published: 9/19/2023 - Luffy, Zoro, Vivi, OC
Rise of the Phoenix Queen by Perseus12 reviews
She's now the Mistress of Death, she leaves her old world and living on the new world. But she must fight once again, she won't stand seeing people suffering and she will break their chains as she is the Phoenix Queen. FemFutaHarry x Harem.
Crossover - Harry Potter & One Piece - Rated: M - English - Adventure/Romance - Chapters: 2 - Words: 1,055 - Reviews: 11 - Favs: 155 - Follows: 170 - Updated: 9/27 - Published: 5/2/2021 - Harry P., Vivi, Boa Hancock, Carrot
Devil's Dreamers by Mrotrax reviews
"Destiny. Fate. Dreams. So long as people cling onto these words? They shall not vanish." A new age of heroism begins when two children are lost at sea and wash ashore, befriending others like them and moving the change the world no matter what. Rated for Bakugo language. TVTROPES page underedo! FINAL REVISONS DONE!
Crossover - One Piece & My Hero Academia/僕のヒーローアカデミア - Rated: M - English - Chapters: 31 - Words: 126,872 - Reviews: 33 - Favs: 99 - Follows: 87 - Updated: 9/27 - Published: 2/5
Unwavering Will in the Sea by dafid1 reviews
What if Frisk from Undertale went to the world of One Piece? See what happens as Frisk goes on a new adventure!
Crossover - One Piece & Undertale - Rated: K+ - English - Adventure/Friendship - Chapters: 92 - Words: 166,151 - Reviews: 114 - Favs: 315 - Follows: 330 - Updated: 9/26 - Published: 11/28/2020 - Luffy, Frisk
Heart of a Pirate by Paintball-Gamer reviews
The Straw Hat Pirates show up at Destiny Islands from Skypiea and meet Sora and his friends. But when the Heartless invade, they are all separated. Now Luffy and Sora must join forces to find their friends, and defeat the darkness. KH/One Piece crossover. Cover image by Kiyomisa on Deviantart.
Crossover - Kingdom Hearts & One Piece - Rated: T - English - Adventure/Friendship - Chapters: 16 - Words: 148,715 - Reviews: 220 - Favs: 261 - Follows: 249 - Updated: 9/26 - Published: 9/17/2008 - Luffy, Sora
Sands of Freedom by SilverSoulmmc reviews
The Straw Hat Pirates are blasted into another adventure, this time through the periling world of Sand Land! In a desolate land filled with storming politics, demons, angels, and monsters as far as the eye can see; will this pirate crew be able to help their new friends overcome it all? "It's not my problem? Of course, it is! We're friends, aren't we!"
Crossover - Anime X-overs & One Piece - Rated: T - English - Friendship/Adventure - Chapters: 7 - Words: 29,718 - Reviews: 16 - Favs: 38 - Follows: 35 - Updated: 9/26 - Published: 6/1 - Luffy, Nami
Father of Monsters by NeonZangetsu reviews
What is a monster? We use the term so often nowadays, in so many ways, it's long since lost any meaning. At their core, Monsters are that which evoke horror, and horror is the violation of that which is 'normal'. They are rejected by society, hated, abandoned. How could I hate a child for wanting to be more than 'normal? I refuse! Narutoxharem. Surprising pairing. Read and see!
Crossover - Naruto & One Piece - Rated: T - English - Romance/Adventure - Chapters: 6 - Words: 59,790 - Reviews: 1177 - Favs: 2,048 - Follows: 2,157 - Updated: 9/26 - Published: 7/14/2023 - Naruto U., Bellemere, Olvia, Big Mom/Charlotte Linlin
Omni-Piece by The True Writer. Zerthin reviews
A Ben 10/One Piece crossover; I woke up this morning with this on my mind, and I had to share it with you all! I hope you enjoy. It's going to be a task I hope you'll enjoy. [Bonus: Ben will have the Ultimatrix (Well an O.C version called the M-Model; He also has the Haki's; all three. but he'll have to get training to access them full time)]
Crossover - One Piece & Ben 10 - Rated: K - English - Adventure/Fantasy - Chapters: 38 - Words: 61,412 - Reviews: 180 - Favs: 199 - Follows: 187 - Updated: 9/26 - Published: 12/22/2019 - Luffy, Zoro, Sanji, Ben T.
One War by Ying-Yang-Ding-Dang reviews
A month after the surrender of the Empire of Japan the American first fleet commanded by Scott Duncan Hazard was ordered to return home to San Francisco and fate says otherwise and sends them to the unknown To the world of one piece where democracy isn't present, freedom shall reign as the land of the free, frees the world Mostly WW2 x One piece with battlefield elements
Crossover - One Piece & Battlefield - Rated: T - English - Supernatural/Fantasy - Chapters: 2 - Words: 8,152 - Reviews: 12 - Favs: 11 - Follows: 12 - Updated: 9/25 - Published: 9/17 - Smoker, Tashigi, Akainu/Sakazuki, Strawhat Pirates
One Piece and Bobobo-bo Bo-bobo Crossover Fanfiction by FanaticCosmos reviews
In this crossover story, the wacky world of Bobobo collides with the adventurous universe of One Piece. Monkey D. Luffy and his crew will meet Bobobo and his team of hair warriors. Together, they must navigate through the zany hair-based obstacles and defeat the evil Hair Hunters. Prepare for some hilarious antics, over-the-top battles, and plenty of hair-raising moments.
Crossover - One Piece & Bobobo-bo Bo-bobo - Rated: T - English - Humor/Adventure - Chapters: 2 - Words: 3,068 - Reviews: 3 - Favs: 9 - Follows: 10 - Updated: 9/25 - Published: 3/23/2023 - Luffy, Zoro, Bobobo-bo Bo-bobo, Don Patch
Milenio Vacío II: Viejo Mundo by Sun Dancer 0880 reviews
Una serie de eventos ocasiona que All Might decida aprovechar la llegada de unos piratas del pasado para realizar un viaje hacia las ruinas de la Gran Linea.El joven grupo de héroes involucrados se entera de sus planes decidiendo traerlo contra su voluntad quedando a merced del tempestuoso mar, obligándose a cooperar con los piratas, descubriendo así en el camino...Un mundo perdido
Crossover - One Piece & My Hero Academia/僕のヒーローアカデミア - Rated: K+ - Spanish - Adventure/Friendship - Chapters: 86 - Words: 605,760 - Reviews: 94 - Favs: 41 - Follows: 38 - Updated: 9/24 - Published: 2/1/2023 - Luffy, Strawhat Pirates, Toshinori Y./All Might, 1-A Students
DELTA: Rise of Shul Shagana by MangaToons reviews
Reboot of The Delta Saga: Team Natsu, Happiness Charge/Tropical Rouge Precure, students from Academy City, and Symphogear users wound up stuck in a world of pirates. They have to rely on the Straw Hat pirates and an young boy labeled as the Ultimate Plague.
Crossover - One Piece & Senki Zesshō Symphogear/戦姫絶唱シンフォギア - Rated: T - English - Adventure/Humor - Chapters: 60 - Words: 384,494 - Reviews: 183 - Favs: 165 - Follows: 146 - Updated: 9/23 - Published: 10/30/2015 - Luffy, OC, Shirabe T.
Journey of the Frozen by gorum141 reviews
When a powerful figure from with a past, Gorum, the wielder of the mythical devil fruit, crosses paths with the Straw Hat Pirates, a new chapter in their adventure begins. Gorum's ancient powers of ice and storm bring both protection and destruction as he struggles with his past, his connection to ancient legends, and his deep loyalty to an old friend.
Crossover - One Piece & League of Legends - Rated: M - English - Adventure/Spiritual - Chapters: 1 - Words: 1,550 - Reviews: 1 - Favs: 1 - Follows: 1 - Published: 9/23
The Ultimate Worst Generation: Databook by stringdog reviews
This is a supplemental companion to my story 'The Ultimate Worst Generation' modeled in part after the One Piece Databooks. It will provide a little more information on the various new characters added from the 5 crossover series and can serve as a reference for those who want it. The added series are Fairy Tail, My Hero Academia, Black Clover, Akame ga Kill, and RWBY.
Crossover - One Piece & Fairy Tail - Rated: T - English - Chapters: 25 - Words: 21,246 - Reviews: 6 - Favs: 39 - Follows: 44 - Updated: 9/22 - Published: 12/2/2023
The Ultimate Worst Generation by stringdog reviews
The Straw Hats have arrived on their final stop before descending to Fish-man Island and onto the New World, the Sabaody Archipelago. However, they're not the only big name rookies present, they are just one of 14 rookie crews present and the other 13 all have big names as well. Mass deep crossover with Fairy Tail, My Hero Academia, Black Clover, Akame ga Kill, and RWBY.
Crossover - One Piece & Fairy Tail - Rated: M - English - Adventure - Chapters: 25 - Words: 338,574 - Reviews: 137 - Favs: 167 - Follows: 177 - Updated: 9/22 - Published: 10/15/2023 - Luffy, Strawhat Pirates
Justice for the land of the Samurai by leonardo18anime reviews
After escaping from the Big Mom pirates,the Sanji rescue team end up crossing some mysterious fog where they are teleported to the DC Universe. Now Luffy and the crew have to try make an alliance with the Justice League in order to help the situation at Wano and defeat Kaifo once and for all.
Crossover - DC Superheroes & One Piece - Rated: T - English - Humor/Adventure - Chapters: 47 - Words: 196,906 - Reviews: 367 - Favs: 431 - Follows: 424 - Updated: 9/22 - Published: 1/11/2020 - Luffy, C. Kent/Kal-El/Superman, B. Wayne/Batman, Princess Diana/Wonder Woman
Straw Hats Vigilantes by leonardo18anime reviews
After sailing for some new waters around the New World, the Straw Hats pirates find themselves stuck in a new modern world full of technology and super power individuals all calling themselves heroes .Now while stuck they have to do some things not heroics to get back to their world.
Crossover - One Piece & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Friendship/Adventure - Chapters: 105 - Words: 328,831 - Reviews: 1282 - Favs: 1,608 - Follows: 1,656 - Updated: 9/22 - Published: 7/12/2019 - Luffy, Strawhat Pirates, Izuku M., 1-A Students
One Piece x MHA X DXD by leonardo18anime reviews
A mash-up crossover. Izuku Midoriya is a boy who thought he was a weak teen who would never be a hero, that would change when he meet the beautiful Rias Gremory who turned him into a devil and tries to help him become a hero. While this happens a bunch of people from another world shows up at his city, where he meet them and especially a boy with Straw Hat with power equal to Gods.
Crossover - One Piece & High School DxD/ハイスクールD×D - Rated: M - English - Friendship/Hurt/Comfort - Chapters: 4 - Words: 6,483 - Reviews: 18 - Favs: 63 - Follows: 74 - Updated: 9/22 - Published: 7/23/2023 - Luffy, Rias G., OC, Sirzechs L.
Pirates and Pandoras by leonardo18anime reviews
While exploring the New World for the first time, the Straw Hat crew stop by a mysterious island. There they found the history of beings called Pandoras and Freezing and their mortal enemies the Nova. However due to some accident they are sent to the world of these beigns. Now Luffy, Zoro and Robin must cope in being in West Genetics, battleign out Novas until they return.
Crossover - One Piece & Freezing/フリージング - Rated: M - English - Drama/Sci-Fi - Chapters: 17 - Words: 40,980 - Reviews: 17 - Favs: 114 - Follows: 117 - Updated: 9/22 - Published: 8/16/2020 - Luffy, Zoro, Satellizer B., Elizabeth M.
The Straw Hat of the Labyrith by leonardo18anime reviews
While training during the Time Skip Luffy finds a weird amulet, one that transports him to a new world which he doesn't know. To get around he needs to explore a Labyrinth and gather a lot of money. While doing that he meets up with some beautiful girls that will awaken something in him and teach him how to love and other benefits. Harem Luffy. Lemons.
Crossover - One Piece & Harem in the Labyrinth of Another World/異世界迷宮でハーレムを - Rated: M - English - Friendship/Romance - Chapters: 1 - Words: 1,804 - Reviews: 2 - Favs: 20 - Follows: 21 - Published: 9/22 - [Luffy, Roxanne, Sherry, Cassia A.]
Going into new adventures by leonardo18anime reviews
Soon after escaping Grace Fields, Emma and Ray as well the others kids explore the outside world. However, they feel that they don't have much of a chance. Luckily, appears to them a straw Hat captain and his crew that is going to guide the kids to safety and make them help survive in this demon-infested world. But also to live out in peace and have crazy adventures together.
Crossover - One Piece & Promised Neverland/約束のネバーランド - Rated: T - English - Adventure/Drama - Chapters: 7 - Words: 16,283 - Reviews: 29 - Favs: 91 - Follows: 103 - Updated: 9/22 - Published: 4/4/2021 - Luffy, Usopp, Emma, Ray
Straw Hats DXD2 by leonardo18anime reviews
Upon arriving on an island Luffy is sent to a new world where there are creatures called Demons, Angels, and Fallen Angels. While there he meets a girl named Rias and joins her club. Now Luffy needs to find a way home while making new friends and maybe find the way to some girl's hearts. Luffy x Harem. Future Lemons. A bit OOC Luffy
Crossover - One Piece & High School DxD/ハイスクールD×D - Rated: M - English - Supernatural/Friendship - Chapters: 61 - Words: 208,828 - Reviews: 572 - Favs: 706 - Follows: 747 - Updated: 9/22 - Published: 9/4/2022 - [Luffy, H. Akeno, Rias G.] H. Issei
Luffy 10 by leonardo18anime reviews
The Life for the Straw Hats got even more weirder. After getting a new crewmember that is a literal skeleton they stopped at an island to rest, Luffy wanders off and sees a Star falling from the sky. The Star turned into a weird thing from space with a weird watch, the thing latches towards his arm and now Straw Hat Luffy is the wielder of a great weapon.
Crossover - One Piece & Ben 10 - Rated: T - English - Adventure/Sci-Fi - Chapters: 4 - Words: 8,390 - Reviews: 48 - Favs: 118 - Follows: 121 - Updated: 9/22 - Published: 8/6/2023 - Luffy, Zoro, Kevin, Vilgax
The Strawhats from Remnants by La Beneamatta reviews
"Dream, Fate, and Destiny... As long as people are fighting for that there will always be an adventure. These unstoppable ideals are held deep in the heart of man. These things shall not vanish from the earth." One night, RWBY goes on a dream adventure on the high seas with the Straw Hat crew. When they come back, they will try at nothing to return to that dream.
Crossover - One Piece & RWBY - Rated: T - English - Adventure/Humor - Chapters: 1 - Words: 5,440 - Reviews: 111 - Favs: 191 - Follows: 202 - Updated: 9/22 - Published: 2/20/2022 - Luffy, Zoro, Nami, Team RWBY
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