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Adventure of a Life time by pikapikachu429
Disbanding Toman was painful for Sano Manjiro Aka Mikey, Toman was the thing he loved the most. But it had to be done for the future. Mikey then went to the beach where it all began for Toman. But maybe sleeping on the sand wasn't the best idea, because now he found himself in water with no with land on sight
Crossover - One Piece & Tokyo Revengers/東京 リベンジャーズ - Rated: M - English - Chapters: 1 - Words: 2,669 - Favs: 2 - Follows: 4 - Published: 9/15 - Luffy, Manjiro S./Mikey
Shinobi On Board by LoneWolf-O1 reviews
After being transported to a world where Marines and Pirates fight on the sea, Naruto joins the adventures of the Straw Hat Pirates. Let's see what he gets up to. Rated M to be safe. Naruto/Harem.
Crossover - Naruto & One Piece - Rated: M - English - Adventure - Chapters: 46 - Words: 258,003 - Reviews: 663 - Favs: 2,099 - Follows: 2,184 - Updated: 9/14 - Published: 11/21/2015 - [Naruto U., Nami, Robin, Gina]
Sea of Souls: Straw Hat Encyclopedia by Black' Victor Cachat reviews
An education segment on the members of the Straw Hat Pirates. Be it the members who died in another universe and now reborn into a totally new reality with different laws of 'physics' and 'biology,' or the canon Bleach members who have undergone some changes. Directed by, Usopp, the proud leader of 8,000 Taichou-class Arrancar, and Lilynette, the most powerful Arrancar of them all.
Crossover - One Piece & Bleach - Rated: K+ - English - Humor - Chapters: 3 - Words: 3,640 - Reviews: 18 - Favs: 85 - Follows: 99 - Updated: 9/14 - Published: 3/18/2020 - Usopp, unknown 1, T. Harribel, Lilinette
Watching My Heroes Reborn by Joanne Frances Tiano Cajilig reviews
Thank you Emma Iveli for your permission to create this story. I'm doing my best to make it fun and twik it a little.
Crossover - One Piece & My Hero Academia/僕のヒーローアカデミア - Rated: M - English - Humor/Adventure - Chapters: 79 - Words: 377,732 - Reviews: 206 - Favs: 453 - Follows: 468 - Updated: 9/14 - Published: 9/21/2020 - Sanji, Izuku M.
One Piece: New Voyage by NameDangit
Takes place after the end of One Piece. Luffy is dying because of his constant sacrificing of his lifespan, but things take a turn for the better when a certain time-traveler shows up. Follow the Straw Hats as they venture through spacetime. Characters tagged are the ones who get the most action in the latest chapter.
Crossover - Dragon Ball Z & One Piece - Rated: K+ - English - Crime/Friendship - Chapters: 2 - Words: 5,856 - Favs: 5 - Follows: 6 - Updated: 9/13 - Published: 8/15 - M. Trunks, OC, Sanji, Iceburg
Heroes of the New World - Omake Anthology by Zaru reviews
This is a collection of Omakes and Tales written and told by me and my fans. This is Non-Canon to the main story Heroes of the New World, but we hope you enjoy it regardless. Heartfelt. Funny. Tragic. And Dramatic. Come see the alternate tales of Izuku and Yamato's Adventures.
Crossover - One Piece & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Adventure/Parody - Chapters: 20 - Words: 26,482 - Reviews: 23 - Favs: 58 - Follows: 63 - Updated: 9/13 - Published: 9/6
Naruto and Sasuke's Predicament by HeroOnlyfans reviews
Naruto and Sasuke were in an intense fight with Kaguya, just as they thought they had the upper hand she had teleported them to a different dimension, depositing them onto Fishman Island, a couple of months before the straw hats would make their way there to save more pirates... Actually, this was before their reunion, just with a couple of months the two have to learn about the un
Crossover - Naruto & One Piece - Rated: T - English - Humor/Adventure - Chapters: 5 - Words: 20,116 - Reviews: 9 - Favs: 25 - Follows: 39 - Updated: 9/13 - Published: 8/21 - Naruto U., Sasuke U., Luffy
Mario and Luigi's Multiversal adventure by The Crimson Yinglet reviews
Mario and Luigi are on a multiversal adventure to find the missing power stars. Will their actions have dramatic changes to these worlds and will it have unforeseen consequences. Only time will tell.
Crossover - Mario & One Piece - Rated: T - English - Adventure/Friendship - Chapters: 4 - Words: 18,055 - Reviews: 4 - Favs: 1 - Follows: 4 - Updated: 9/12 - Published: 9/3 - Mario, Luigi, Luffy, Ace
Straw Hat Lincoln (Reboot) by Gamelover41592 reviews
While protecting his family from an attack by his enemies, his sister portal gets activated and sends him, his foes and some of Lisa's inventions to a world where his favorite manga One Piece is real. Now joining Luffy, he plans to make some changes and retrieve his sister's inventions.
Crossover - Loud House & One Piece - Rated: T - English - Adventure - Chapters: 5 - Words: 22,206 - Reviews: 64 - Favs: 92 - Follows: 87 - Updated: 9/12 - Published: 12/5/2018 - Lincoln L.
One Magi: YEFBTL by Sorceric7 reviews
Trials and Tribulation. Every pirate has experienced these things when they sail the Grand Line. Maxwell sailing with Straw-Hat Pirates have had their own fair share of troubles along their journey. Now they're close to half way mark, but that doesn't offer a reprieve. No. This is the beginning of a long, long night.
Crossover - One Piece & Dragon Age - Rated: T - English - Adventure/Fantasy - Chapters: 21 - Words: 92,573 - Reviews: 36 - Favs: 37 - Follows: 45 - Updated: 9/12 - Published: 1/3
Getting more Crewmembers by leonardo18anime reviews
The Straw Hats wanted to travel more across the vast waters of their seas. Soon they get to meet with a bunch of crazy and powerful individuals who beg Luffy to join the crew. The captain takes a like and soon a bunch of new people will start to join the crew and take upon all kinds of crazy fights. Fighters of Humanity join the Straw Hats AU
Crossover - One Piece & Record of Ragnarok/終末のワルキューレ - Rated: T - English - Friendship/Adventure - Chapters: 6 - Words: 12,519 - Reviews: 17 - Favs: 72 - Follows: 81 - Updated: 9/11 - Published: 4/3 - Luffy, Zoro, Sasaki Kojiro, Jack the Ripper
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: 37 - Words: 162,898 - Reviews: 240 - Favs: 266 - Follows: 256 - Updated: 9/11 - Published: 1/11/2020 - Luffy, C. Kent/Kal-El/Superman, B. Wayne/Batman, Princess Diana/Wonder Woman
Dungeons pirates and Gods by leonardo18anime reviews
Zeus enters in contact with the Straw Hats pirates to protect his grandson Bell from a great future danger. While in Orario the pirates join the Hestia Familia and embark in all sorts of crazy adventures, making new friends and being acknowledged by Gods themselves.
Crossover - One Piece & Dungeon ni Deai o Motomeru no wa Machigatte Iru Darou ka - Rated: T - English - Adventure/Friendship - Chapters: 19 - Words: 49,089 - Reviews: 104 - Favs: 232 - Follows: 261 - Updated: 9/11 - Published: 6/27/2020 - Luffy, Bell C., Hestia, OC
Pirates Fall into Gotham by dragonwriter88 reviews
The Thousand Sunny (Post Timeskip) gets sucked into a cyclone that sends them into Gotham. The crew gets separated and each meets different members of Gotham's Elite. Will the Strawhats abandon what little morals they have under the influence of rogues or will Batman save his city from pirates? Big Edit on 12/1/16. Please read from the beginning.
Crossover - Batman the Animated Series & One Piece - Rated: K+ - English - Humor - Chapters: 20 - Words: 38,013 - Reviews: 140 - Favs: 296 - Follows: 327 - Updated: 9/11 - Published: 10/18/2015 - Bruce W., Luffy
Ilussionary Blue Sea (幻想的な青い海) by kaindol51 reviews
Yukari In Her Usual Travel's In the Outside World, Stumbles Upon a place She Finds Interesting. In This place Pirates Across All Places Come From The Seas, In Search Of The Treasure of a Deceased Man called Gol. D Roger. The One Piece. Yukari Then Decides to Throw The Hakurei Miko In This World For Her Own Amusement. now reimu has no choice but help luffy become the pirate king.
Crossover - Touhou Project & One Piece - Rated: T - English - Adventure/Humor - Chapters: 9 - Words: 55,587 - Reviews: 21 - Favs: 35 - Follows: 36 - Updated: 9/11 - Published: 12/15/2021 - Reimu H., Luffy, Youmu K., Zoro
Lewd piece: Pokegirls System by BrookBB reviews
After dying you get reincarnated into weird crossover between one piece and pokegirls. this will be a gamer / system story with plenty of lemons written in collaboration with Coily boi
Crossover - Pokémon & One Piece - Rated: M - English - Adventure/Fantasy - Chapters: 5 - Words: 19,246 - Reviews: 3 - Favs: 112 - Follows: 139 - Updated: 9/11 - Published: 9/11/2021
Rise of Hadrian D Pendragon (Book 2) by Merilwen-Vendethiel
(Cross Posted on AO3)(Rated M) It's time for Hadrian to return to Hogwarts only this year he has a chamber and a sociopath to contend with. How bad will this year go that he needs to continually hide from his peers and his guard?
Crossover - Harry Potter & One Piece - Rated: M - English - Chapters: 2 - Words: 1,957 - Favs: 3 - Follows: 3 - Published: 9/10 - Harry P.
L'Héritier de l'Underground by Zialema reviews
"C'est avec de l'argent sale qu'on construit des hôpitaux". Comment ne pas accorder de crédit aux bienfaits du crime quand les lois s'obstinent à vouloir briser une famille qui n'a rien demandé à personne, sinon une seconde chance ?(fem!Ace NoHorcruxe!Harry- !Dumby/Ron/Ginny/Molly Bashing)
Crossover - Harry Potter & One Piece - Rated: T - French - Crime/Family - Chapters: 50 - Words: 479,157 - Reviews: 406 - Favs: 347 - Follows: 364 - Updated: 9/9 - Published: 1/9/2019 - Harry P., Ace, Thatch
La Geste du Loup Blanc et du Chat Noir by Zialema reviews
Qui peut prétendre connaître les motivations de la Chasse Sauvage ? Ou du pourquoi elle s'intéresse à certains et pas à d'autres ? Tout ce qu'on sait, c'est qu'elle va de monde en monde pour trouver des soldats-esclaves pour sa cavalcade… et que certains parviennent à s'échapper...
Crossover - One Piece & Witcher - Rated: M - French - Fantasy/Adventure - Chapters: 36 - Words: 386,039 - Reviews: 20 - Favs: 34 - Follows: 33 - Updated: 9/9 - Published: 12/1/2019 - Ace, Thatch, Geralt of Rivia, Marco
Percy Jackson sees Pirate Warriors by Infinity Prime reviews
Our favorite Greek demigods and gods are doomed to see the adventures of Monkey D. Luffy! With the company of Themis, the ancient goddess of justice and the flamboyant pirate captain Rapidfire Junior, you will see the craziest story ever told, about of the future Pirate King!
Crossover - One Piece & Percy Jackson and the Olympians - Rated: T - English - Humor/Adventure - Chapters: 18 - Words: 105,150 - Reviews: 115 - Favs: 214 - Follows: 226 - Updated: 9/9 - Published: 3/10/2021
The Beautiful Pirate Empress by Tengoku no Kotei reviews
The invasion had been going on for some time on Amazon Lily, and the Pirate Empress, Boa Hancock, was feeling exhausted from facing so many adversaries at once, though she would never admit it to anyone because she was beautiful. And when everything seemed to be coming to an end, he came. The otherworldly, blue-eyed blond man who turned the whole tide of combat going on. Lemon!
Crossover - Naruto & One Piece - Rated: M - English - Romance/Hurt/Comfort - Chapters: 1 - Words: 5,873 - Reviews: 12 - Favs: 113 - Follows: 102 - Published: 9/8 - [Naruto U., Boa Hancock] - Complete
Straw Hats: Pokemon Trainer by ppsspp reviews
A 14 year old boy got transferred to One Piece in his dreams along with six Pokemon he caught in the Pokemon Ultra Sun game. This boy only watch One Piece upon till episode 47. Does he know the danger he will face in the future?
Crossover - Pokémon & One Piece - Rated: M - English - Adventure/Humor - Chapters: 6 - Words: 9,134 - Reviews: 12 - Favs: 34 - Follows: 40 - Updated: 9/8 - Published: 8/9 - OC, Luffy, Zoro, Nami
Crimson Eclipse by AngelFallenDemon reviews
Have you ever wonder if there was more than just Devils that had turned to fruit but also Demons that should have just faded off into the shadows of time. Now we have their descendants shaking up the world. This is a time travel fic first try. So yeah. Better Summary inside
Crossover - Hellsing & One Piece - Rated: M - English - Adventure/Romance - Chapters: 12 - Words: 47,435 - Reviews: 18 - Favs: 108 - Follows: 106 - Updated: 9/8 - Published: 7/24/2020
God of One : Ascension by Acelichking
La folie ronge le pauvre "fantôme des mers". En effet, Ace ne trouve aucun moyen de pouvoir se venger de son ancien maitre, Arès. Alors qu'il allait perdre, espoir, un invité des plus surprenant va lui ouvrir la voie pour la liberté. Est ce que ne héros arrivera-t-il à avoir cette chance pu bien ceux qui rodent dans l'ombre l'attraperont? Ca, seul l'avenir nous le dira.
Crossover - One Piece & God of War - Rated: M - French - Adventure - Chapters: 5 - Words: 8,237 - Updated: 9/8 - Published: 6/1
Ichi by InsaneSmirkingRevenge reviews
Ichi AKA (A timeless death god stuck in a reincarnation loop finds himself in One Piece and tries to have a quiet life even though he hates it when little girls cry and has a tendency to punch things that make them cry)
Crossover - One Piece & Bleach - Rated: M - English - Humor/Supernatural - Chapters: 1 - Words: 6,101 - Reviews: 2 - Favs: 24 - Follows: 43 - Published: 9/7 - Makino, Ichigo K.
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