One Piece is one of the Anime series with the longest storyline and still has no end. It is not divided into parts like other works, but instead, divided into many Arcs throughout.
Arcs in One Piece have different lengths, Romance Dawn, Orange Town only have a few episodes while Wano Kingdom lasts more than a hundred episodes. Longer arcs will have more detailed contributions to the main story, but they do not possess the same “motif”.
While some Arcs contribute a lot of new information and stories, they are not always memorable. In contrast, Marineford or Dressrosa, though filled with battle scenes, are mentioned a lot.
Below is a list of the longest One Piece Arcs compiled by Vietotaku. It should be noted that not all Arcs leave a deep impression on the audience, this is just a rating for duration.
Emotions surged in Water 7 Capital (37 episodes)

The events of Arc Water 7 accomplished some of the plot essentials, although it only served as a backdrop for the Straw Hats’ next actions.
Such as Franky’s first appearance, as a ship wrecker and a famous thug in the Water Capital. However, he has no intention of joining the Straw Hats at this point.
Also in Arc Water 7, the audience witnessed many emotional moments. In it, there are two details that really stand out and leave many deep impressions.
The first is the Going Merry, the Straw Hat Pirates’ ship that has been badly damaged and cannot continue their adventure with them. Soon after, Usopp temporarily left the crew after a heated argument with Luffy because he did not agree to replace the Merry with another ship.
This is a moment that clearly shows the inner conflict of the characters in the work. Therefore, it is possible that the audience will feel uncomfortable with the heavy atmosphere that surrounds the entire Straw Hat crew.
Alabasta is the first stop of the Straw Hats (39 episodes)

Alabasta is the first full-length Arc and is one of the most loved by the audience. This is also where Luffy confronts a Shichibukai, Crocodile, his strongest enemy at the time.
The audience also had the opportunity to know Ace, Luffy’s sworn brother. This meeting has important plot implications, not only revealing Luffy’s past but also explaining the origin of many world-shaking events.
In addition to the above points, the film also helps the Straw Hats welcome a new member and form a friendship with a powerful ally. More specifically, Nico Robin voluntarily boarded Luffy’s ship after being betrayed by the main villain Crocodile.
At the same time, Princess Vivi and King Alabasta and his viziers became new allies of the Straw Hats. It’s a pity that Vivi decided to stay in her homeland without adventuring with her comrades.
However, Vivi always respects the entire Straw Hat crew because they were born with her to bring peace to the Alabasta Kingdom. It can be said that this is a happy ending and the beginning of interesting stories and new challenges in the future.
Skypiea did not meet the expectations of many viewers (43 episodes)

In the movie Skypie, the audience had the opportunity to adventure with the Straw Hats to the Sky Island, thereby deepening their understanding of the One Piece world. This mainly comes from Robin exploring the ruins of Skypiea and discovering a Poneglyph.
Although Luffy’s battle with the “last boss” Enel is very interesting, it is only built according to the traditional motif and does not make much impression on the audience.
The fact that Luffy quickly defeated Enel, the self-proclaimed God and the main villain in Skypiea did not satisfy the audience. This is too easy given that the character Enel possesses powerful abilities such as Observation Haki and the Goro Goro Devil Fruit.
Skypiea is an interesting idea, but the plot of rebels standing up to fight the dictator lacks novelty and becomes more bland than other Arcs in the work.
The audience is not too “terrified” about Thriller Bark (45 episodes)

Thriller Bark continues to be the Arc that introduces new members to the Straw Hats, musician Brook “dead to the bone”. Although its plot is the clash between Luffy and Moria, a Shichibukai, it brings a new feeling to the audience.
The zombies and Moria’s ability to control the shadow are very interesting, but overall it does not create much emphasis for the movie.
Moria is a powerful villain, but his rapid rise in power makes audiences unhappy. In an instant, Moria became superior to any opponent the Straw Hats had ever faced and became a joke in no time.
This makes their victory unconvincing and ultimately makes Thriller Bark the part that doesn’t leave much of an impression in One Piece.
Enies Lobby is full of surprises (46 episodes)

Enies Lobby is a movie full of emotions and brings eye-catching action scenes. Seeing his teammates come to rescue him despite the danger, Robin was very emotional and pushed aside the barriers in his mind to ask for help from the Straw Hats.
Each member of the crew faces powerful enemies and tough challenges, it’s their chance to prove their role in the plan to rescue Robin and escape the siege of the navy. .
This is also the first time the audience sees Luffy’s new “Gear” forms. This increase in physical strength shows that he is willing to push himself to the limit in order to protect his teammates, which of course comes with damage to Luffy’s own body.
Besides, the Going Merry officially said goodbye to the Straw Hats at the end. The image of the brave ship that had been with them through many ups and downs and still protected the Straw Hats until the last minute made the audience extremely emotional.
However, the crew was still able to continue their adventure in Dai Hai Trinh with the shipbuilder Franky and the new ship he designed. With the above highlights, Enies Lobby deserves to be one of the best Arcs of One Piece.
Punk Hazard is the beginning of a series of important events (46 episodes)

The Punk Hazard arc is the beginning of a story that spans three parts and ends in Wano Country. There, the Straw Hats discovered illegally made SMILE Devil Fruits, then allied with Law and met the samurai “father and son” Kin’emon and Momonosuke.
This arc opened up a new direction with a specific goal for the Straw Hats, as well as a meeting place with previous opponents such as Smoker and Law.
The scenery of the island is also really different, impressing the audience with two different types of weather. The only downside, however, is that it doesn’t put the entire Straw Hat crew to tough challenges.
Fish-Man Island marks the return of the Straw Hats (51 episodes)

Fish-Man Island was the first place the Straw Hats sailed after two years of separation, it contains many interesting things about the seabed. What the audience looks forward to the most is to witness the results and growth of the whole crew after a period of practice.
However, the villains aren’t quite as dangerous as the previous enemies the Straw Hats have faced, though they do contribute to ending Nami’s past grudges.
The most important thing in this movie is the appearance of Big Mom, signaling powerful and dangerous forces are targeting Luffy and his teammates.
However, the crew need to pass their first test on Fish-Man Island and prove how they’ve progressed and what level of strength they’ve reached after arduous training.
Cake Island Arc shows the fear of the Yonko (95 episodes)

The Cake Island Arc has become one of the best One Piece developments for a number of reasons. With the Straw Hats split, the plot focused on members who dared to invade Big Mom’s territory.
This is also the first time they have to face and confront a Yonko. This serves as a warning to both Luffy and the audience about the level of power and fear of emperors on the high seas.
Sanji’s entire past is revealed in this Arc. With no other choice, he has to return to Germa 66, the family that has abused him since childhood. Thanks to that, the audience learned about the unhappy childhood that Sanji went through.
Here, Luffy had the opportunity to upgrade his power to a new level with the ability to foresee the near future and defeat Katakuri, an opponent with a bounty of more than 1 billion Beri and stronger than any other enemy. What enemies Luffy has ever faced.
This is a movie that converges many great elements from action, emotion to compelling storytelling, bringing the most memorable moments on Luffy and the Straw Hats’ journey to conquer the One Piece treasure.
Dressrosa is loved by many viewers (118 episodes)

Dressrosa has the second longest run time in the work. According to many viewers, this is the most outstanding Arc among the events that have taken place. With more than 100 episodes, Dressrosa has enough time to introduce a large number of characters or add extra information to the main storyline.
Thanks to that, the audience had the opportunity to meet many new characters such as Admiral Fujitora, members of the Great Straw Hat Fleet led by Luffy. The most surprising is the return of Sabo, his long-lost sworn brother.
The film is a big turning point for the main characters in One Piece, forcing them to become stronger to win over their enemies. For example, Luffy has released Gear 4, Zoro has wrapped a lot of Haki in his sword, even Usopp has unlocked Observation Haki.
The content of this movie is quite complicated, revolving around the task of freeing the country of Dressrosa from the rule of Doflamingo. Even though there’s a lot going on, it ensures the audience can keep up and understand the important details.
Arc Wano still attracts many viewers even though it has not ended (+133 episodes)

Adventures in Wano Country is still being shown and promises to be one of the best parts of the work. It seems to bridge the loose ends of the two previous installments, Reverie Conference and Cake Island.
Wano has focused more on the Samurai on board the Straw Hat Pirates’ boat, while uncovering the crime of man-made SMILE Devil Fruit production and revealing the dark history of Wano country.
The Straw Hat Pirates continue to develop new abilities to take on powerful enemies and make new allies. Therefore, Wano Quoc is one of the most interesting and unique places that the whole crew has ever set foot in.
Unfortunately, it hasn’t come to an end yet. The audience does not know how the story will unfold, but those who follow the Manga know that the quality of the next episodes will have many interesting and interesting details about to be aired.
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