What are the two pieces?
What is the two-piece and how is it connected to the one-piece?

Arthur Conan Doyle, the author of Sherlock Holmes, once said, "The world is full of obvious things which no one, by chance, ever observes." And while you might be wondering what this quote has to do with the world of anime, One Piece in particular, we actually have a pretty good explanation. Have you ever heard of Two Pieces? This isn't the hypothetical sequel to One Piece, but rather a very obscure parody manga that the internet knows about but... not really. In this article, we'll explain how Two Pieces is connected to the original One Piece manga.
Two Pieces is a three-volume One Piece parody manga written and illustrated by Shiranami Tsuchigumo, an author about whom the internet knows nothing. Not much is known about this parody manga, except that the characters resemble poorly drawn versions of Oda's characters and that a foreign-language copy can be ordered online. It is unknown how many copies are in circulation or if anyone has actually read it.
The rest of this article will tell you everything we know about the Two Pieces parody manga, and that's almost nothing. We'll talk about how it's connected to the original One Piece manga and why it's such a cult classic in the otaku community, but we must warn you that we haven't actually read it, and the information we have on it is very scarce.
What is Two Pieces?
When yours truly was originally assigned this article, he was quite irritated because he thought it was just another fanfiction request, and I really hate writing them because they aren't based on any canon material or theory, making them more or less useless for such a serious site. Namely, Two Pieces (or Two Piece) has been the title of a hypothetical One Piece sequel for years now, and I honestly thought this one would be about that—but I was wrong.
Namely, after further research, I discovered that Two Pieces is both the title of a hypothetical sequel to One Piece and an actual manga published, as far as we know, in 2010 in three volumes. The series was written by a guy named Shiranami Tsuchigumo, about whom the internet knows absolutely nothing; this means that it could be a pseudonym of a more popular author, which wouldn't be strange for the world of anime and manga. Anyway, the Shiranami Something-guy published a total of three volumes of the series and you can see what they look like:

It's unclear how many copies are in circulation, or how to get hold of these books (Amazon sells volumes 1 and 2, but they're quite expensive and not in English), but they do exist. And they're an officially recognized parody of Eiichiro Oda's One Piece manga, which is visible if you simply look at the covers with a parody of Luffy (called Huffy or Fuffy, depending on the source you use), Nami, Zoro, Usopp, and Chopper on them (interestingly, there doesn't seem to be a parody of Sanji in these books).
The story is said to take place after One Piece, meaning after the One Piece treasure is discovered, but not by Luffy. The crew members are scattered and are united by Fuffy or Huffy, who hears about the existence of another precious treasure, the Two Pieces, so he sets out on an adventure to obtain it. The characters really look like poorly drawn versions of the originals so we're not sure what to make of it. People who have read it say it's not as bad as it seems, but we really don't know what to make of it. Anyway, Two Pieces exists and it's a parody of One Piece, although we don't really know what Eiichiro Oda said about it and why there are only three volumes of the story present but that's what we know. the title.
How is Two Pieces connected to One Piece?
How is Two Pieces connected to One Piece? Well, the latter serves as a narrative and artistic basis for the former, but that's it. In reality, it's related to the original material like any other parody, so we don't have anything specific to add. What we wanted to tell you is the plot of One Piece. In short, since we don't know anything about the plot of Two Pieces, we thought that knowing the plot of the original might help you understand how the parody was created.
The story of One Piece takes place in a fictional world dominated by the oceans, where some pirates yearn for an era of freedom and adventure known as the "Golden Age of Piracy." This era was ushered in by the last words spoken by the Pirate King, Gol D. Roger, nicknamed Gold Roger, before his execution. Roger announces to the world that its people are free to seek all the riches he has accumulated throughout his life, the "One Piece."
Twenty-two years after Roger's execution, interest in One Piece is waning. Many have given up on it, and some even question its existence. While pirates still pose a threat to the local population, the Navy has become more effective at countering their attacks across the four seas: East Blue, North Blue, West Blue, and South Blue. However, this change hasn't deterred Monkey D. Luffy, a young boy, from wanting to become the legendary Roger's successor.
He will thus embark on the adventure, giving himself the first objective of creating a crew in order to reach the sea of Grand Line, where the fever of the "great wave of piracy" continues to rage, and where many big names in piracy are in pursuit of the One Piece, supposed to be on the last island of this great sea, Laugh Tale (spelling wanted by Oda).
Luffy sets off on an adventure after meeting red-haired Shanks, the captain of a pirate ship who spent a year in his village and saved him from a sea monster by sacrificing his left arm. Since then, Luffy has worn the straw hat he gave him as a token of his promise to become a great pirate. This hat would become the symbol of his crew. It was during this time that he ate a devil fruit held by Shanks: the Gomu Gomu no Mi, which made his body elastic.
Once consumed, Devil Fruits grant their holder special abilities, which also impairs their strength when immersed in seawater. It's a curse. Luffy and his crew will meet many people who will strengthen their friendship and expand their crew. But they will have to face pirate crews who advocate violence and power, as well as the Navy and its soldiers, guarantors of justice.