One Piece is the one of the longest anime.One piece is best selling Manga in japan and it was written by the Eiichiro Oda.One piece is name the treasure hide by the Former Pirate king Gol.D.Roger and whoever found this treasure then he becomes the Pirate King.In this anime the main character Monkey.D.Luffy eats a devil fruit which name gum gum fruit which gives him the ability of a rubber.To become the pirate king Luffy gather a crew and encounters many enemies and adventures which gives you chills by watching it.Now the anime have over 890+ episode.One piece recently enters the Wano arc one of the most awiated arc by the fans where he enconters ninja, shogun and samurai.The main purpose of Luffy is to take down the one of the four empror Kaido.After the end of Naruto Shippuden back in 2017 there is not single manga can beat the collection of One piece.