Gol D. Roger was known as the 'Pirate King', the strongest and most infamous being to have sailed the Grand Line. The capture and execution of Roger by the World Government brought a change throughout the world. His last words before his death revealed the existence of the greatest treasure in the world, One Piece. It was this revelation that brought about the Grand Age of Pirates, men who dreamed of finding One Piece-which promises an unlimited amount of riches and fame-and quite possibly the pinnacle of glory and the title of the Pirate King. Enter Monkey D. Luffy, a 17-year-old boy who defies your standard definition of a pirate. Rather than the popular persona of a wicked, hardened, toothless pirate ransacking villages for fun, Luffy's reason for being a pirate is one of pure wonder: the thought of an exciting adventure that leads him to intriguing people and ultimately, the promised treasure. Following in the footsteps of his childhood hero, Luffy and his crew travel across the Grand Line, experiencing crazy adventures, unveiling dark mysteries and battling strong enemies, all in order to reach the most coveted of all fortunes-One Piece.
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Before the story's big timeskip, Toei padded the anime with 58 filler episodes to keep pace with the manga. After the timeskip, that number dropped to just 18, and none of the newer filler arcs run longer than four episodes, a clear sign the studio leaned much harder into staying close to Oda's source material as the story matured.
For over two decades, new One Piece episodes aired continuously, week after week, all year long. That changed heading into the Elbaph Arc, when producer Ryuta Koike announced the show would move to two shorter broadcast blocks a year, capping new episodes at around 26 annually so the anime could better match the manga's own pacing instead of racing to fill a weekly slot.
Toei Animation, the studio bringing One Piece to screens since 1999, has been around since 1956. Long before the Straw Hats ever set sail, legends like Hayao Miyazaki and Isao Takahata cut their teeth working there, which makes One Piece just one entry, albeit a huge one, in a studio history stretching back to the earliest days of Japanese TV animation.
Live-action anime adaptations have a rough track record, and fans were braced for the worst when Netflix announced its One Piece series. What changed the conversation was Oda's involvement as executive producer with actual veto power, letting him block anything that strayed too far from the spirit of the source material, which is a big part of why the show landed as well as it did with longtime fans.
Long before Brook ever joined the crew, the Straw Hats crossed paths with a giant whale named Laboon in one of the earliest arcs of the series. It takes hundreds of chapters, and just as many anime episodes, before the connection between that whale and Brook's own backstory pays off, a level of long-game plotting that's become one of the show's defining traits.
Singer Hiroshi Kitadani opened the very first episode of One Piece back in 1999 with 'We Are!' and he's kept coming back ever since, lending his voice to five different openings across the show's run including 'We Go!,' 'We Can!,' 'Over the Top' and 'A~su!.' No other artist has been asked back to the theme song chair that many times.
When K-pop group TVXQ covered 'We Are!' for One Piece's tenth anniversary opening, the single shot straight to number one on Japan's Oricon charts. It was their sixth chart-topping single in Japan, which made them the first ever foreign act to pull off six number-one hits there.
For the milestone 1000th episode, the anime didn't debut a flashy new opening, it went back to where it all began. A newly animated version of 'We Are!' played over fresh footage of the crew, while all ten main Straw Hat voice actors recorded personal messages reflecting on how far the show had come since 1999.
To mark the anime hitting 1000 episodes, Toei Animation didn't just throw a party, it went for a Guinness attempt. Fans worldwide were invited to upload selfies to an official site in hopes of building what organisers called the largest digital photo album ever assembled for a single anime milestone.
Somewhere in the Wano arc, One Piece quietly broke its own internal record. Season 20 ran for a full 197 episodes, making it the longest single season the anime has ever produced, longer than most other shonen series manage across their entire run.
