AU Taking place between Wano and Egghead after setting sail from Wano the Straw Hat crew land on an autumn island where they encounter the All Seas Pirates whose captain has a history with Luffy

All his life Lambo has been seen as nothing but a tantrum throwing selfish weak crybaby, it's easy to see himself that way. Then, one day a Straw Hat comes flying into his life bringing chaos wherever he went, while dragging Lambo along with him. Lambo just can't help but go along with this Straw Hat, he even enjoys it. This is the story of how a boy grew into who he wanted to be.

After freeing Wano from Kaido, all of the straw hats decide to just sail for a vacation, getting supplies, enjoying the sights and training for the battle to the One Piece. But this vacation may end up giving them more firepower in the form of 14 powerful individuals. The Straw Hats are getting a big boost in their sailing journey.

Rena led a simple, boring, lonely life until one day she met a being from another world. A Guardian who protects the Realms, and she needs Rena's help to save everyone. She had always wanted to travel the world, but now, she is traveling between worlds. Who will she encounter along the way? Multiple crossovers: Fairy Tail. MHA, One Piece, and more.

Grand Jipang is welcoming a famed Summoner to the city where he'll protect it along with Boss Luffy. As the Summoner adjusts, Nobles will be on the hunt for him and his new friends.

Naruto makes the decision of a lifetime by joining the pirate king's crew before it ever became famous. Together they will take the world by storm fighting famous figures like garp and rocks while turning the world upside down. This is the journey of how the Roger pirates went from being an unknown pirate crew to standing at the top of the world. What legacy will Naruto leave?

(Remasterizado) Un antigua "Diosa" planea se venganza con la ayuda del Bibliotecario, guardián de la Biblioteca, la prisión de los mundo no solo dormidos, sino caídos. El "emisario" de esta "Diosa" provocara la caída de los Portadores dejando solo a 4 de ellos para cumplir el cometido junto con la ayuda de los Sombreros de Paja. ¿Lograran derrotar a la "Diosa" y al Bibliotecario?

The last thing Midoriya remembered was being overwhelmed by a crowd of civilians that were being controlled by the third assassin sent by All for One. But suddenly, he found himself in the middle of a bloody battlefield, surrounded on all sides. Whitebeard had no idea who this new arrival was, but he wasn't going to complain as the stranger defended his son from Akainu.

(Inspired by The Crimson Yinglet stories) After a conflict that caused the Power Stars to be transported to other universes, it is up to Mario, Luigi and his friends to find them. New friends and foes will come, but they all will learn a very important lesson: These plumbers are NOT like the others! Arc 1: One Piece

In a world where heroes with extraordinary powers protect society, a young man named Ace, with the mysterious ability to control fire, finds himself thrust into the ranks of heroes-in-training at UA Academy. Struggling with amnesia about his past life, Ace forms friendships with fellow students, including Itsuka, Mirio, and Nejire, as they navigate training, classes, and life.

The Straw Hat Pirates have arrived in a world of dragons, and making friends with Spyro, they embark on a journey together to save the world from evil.

Luz is the new blackbeard

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] .

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.

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.

What if Frisk from Undertale went to the world of One Piece? See what happens as Frisk goes on a new adventure!

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.

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!"

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!

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)]

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.

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

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.

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.

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.